Questions Asked on
October 5, 2010

Chemistry
Write a molecular equation for the precipitation reaction that occurs (if any) when the following solutions are mixed. If no reaction occurs, write NOREACTION. Are my answers below correct? I used the textbook 1. sodium chloride and lead (II) acetate
asked by Jerry 
Geographyand socity
1. _______________________ is the science of predicting the weather. (1 point) Climatology Ecology Meterology Botany 2. _______________________ is the condition of the atmosphere at any given location and time. (1 point) Weather Precipitation Climate
asked by vensu 
statistics
A survey found that 25% of pet owners had their pets bathed professionally rather than do it themselves. If 18 pet owners are randomly selected, find the probability that exactly 5 people have their pets bathed professionally.
asked by Anonymous 
Physics
The coefficient of kinetic friction between a suitcase and the floor is 0.272. If the suitcase has a mass of 90.0 kg, how far can it be pushed across the level floor with 700 J of work?
asked by Angela 
Physics
A skier traveling 12.0 m/s reaches the foot of a steady upward 18° incline and glides 18.2 m up along this slope before coming to rest. What was the average coefficient of friction?
asked by Lilly 
science
From the following: pure water solution of C12H22O11 (m=0.01) in water solution of NaCl (m=0.01) in water solution of CaCl2 (m=0.01) in water choose the one with the a) highest freezing point b) lowest freezing point c) highest boiling point d) lowest
asked by Sal 
geography
why is the difference in solar receipt between 60N and 30N greater in the winter than in the summer?
asked by TC 
statistics
Approximately 10.3% Of American High School Students Drop Out Before Graduation. Choose 10 Students Entering High School At Random. Find the probability that at least 6 will graduate
asked by Anonymous 
EnglishWriteacher
Recently my class and I read a short story called "A l is Calm." It is basically about this girl named Katherine and her grandma who is suffering from the Alzheimer's disease. It starts out as this: Katherine's grandma has to be taken to the doctor because
asked by Sara 
physics
Two blocks of masses m1 and m2 approach each other on a horizontal table with the same constant speed, v0, as measured by a laboratory observer. The blocks undergo a perfectly elastic collision, and it is observed that m1 stops but m2 moves opposite its
asked by lizzy 
Geography
I had 2 questions need to be done by the night, please help me 1. Calculate the noon sun angle for New Orleans, USA(30N), and for Helsinki, Finland(60N), on each of the following dates: march 21, june21, sep 22, dec 22,10/3 2. What are the zenith angle and
asked by Ken 
Physics
Ball A leaves the edge of a level table with speed Va and falls to the floor. At the instant ball A leaves the table edge, another identical ball, B, is released from rest at the height of the table top and also falls to the floor. It is observed that the
asked by Balthazar 
physics
A small, m = 2.00 g plastic ball is suspended by a L = 25.0 cm long string in a uniform electric field, as shown in the figure below. If the ball is in equilibrium when the string makes a 14.0° angle with the vertical as indicated, what is the net charge
asked by Mike 
chem
Po218 is an alpha emitter with a halflife of 3.0 minutes. If a sample contains 69 mg of Po218, how many alpha emissions would occur in 6.0 minutes? the answer has to be _________a emmisions (which I have no idea what it means) and I use a chart thing
asked by lisa 
chem
Iodine131 is often used in nuclear medicine to obtain images of the thyroid. If you start with 3.6 109 I131 atoms, how many are left after approximately 1 month? I131 has a halflife of 8.0 days. can you tell me how to do that problem and what answer
asked by Jammy 
Physics
Assuming 100% of your energy can be converted to electrical power, and electricity costs $0.10 for 1 kilowatthour, how high should you climb to make one penny's worth of electricity? Show all work & units. I have 288.8 watts, and that's as far as I have
asked by Amber 
physics
A banked circular highway curve is designed for traffic moving at 55 km/h. The radius of the curve is 220 m. Traffic is moving along the highway at 38 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow
asked by Vipre 
Organic Chem
A 20 g mixture containing 95% (by weight) of A and 5% of B is recrystallized in toluene (b.p. 110 C). Solubility for compound A is 1.5 g @20 degrees and 10 g @ 110 degrees. For compound B solubility is 0.5 g @20 degrees and 8 g @ 110 degrees. What amount
asked by Eric 
Chemistry
The heat of vaporization of water at 100C is 40.66 kj/mol find the change in entropy when 5.0 g of water vapor condenses to liquid at 100 C and 1 atm pressure
asked by Kassie 
Physics
A child goes down a playground slide that is inclined at an angle of 24.5° below the horizontal. Find the acceleration of the child given that the coefficient of kinetic friction between the child and the slide is 0.305.
asked by Manny 
college physics
Three identical balls are thrown from the top of a building, all with the same initial speed. The first is thrown horizontally, the second at some angle above the horizontal, and the third at some angle below the horizontal. Neglecting air resistance, rank
asked by matt 
PHYSICS
A jet flying at 135 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, and the mass of the jet is 1.82*10^5 kg. Calculate the magnitude of the necessary lifting force.
asked by JULIA 
calculus
An isosceles triangle is drawn with its vertex at the origin and its base parallel to the xaxis. The vertices of the base are on the curve 5y=25x^2 Find the area of the largest such triangle.
asked by nesri 
Physics
An athlete competing in long jump leaves the ground with a speed of 9.14 m/s at an angle of 35 degrees above the horizontal. What is the length of the athlete's jump?
asked by Amanda 
statistics
In a survey, 63% of Americans said they own an answering machine. If 14 Americans are selected at random, find the probability that exactly 9 own an answering machine.
asked by Joe 
Chemistry  Please help!!
I did a lab for Organic Chemistry We did a simple distillation of an unknown alcohol to determine the boiling point, which was found to be 74*C The four possibilities for the unknown were methanol, ethanol, 1propanol and 2propanol. So from the boiling
asked by Laura 
statistics
It has been reported that 83% of federal government employees use email. If a sample of 200 federal government employees is selected, find the mean, variance, and standard deviation of the number who use email.
asked by Anonymous 
Physics
A 1200kg car rounds a corner of radius r = 45 m. If the coefficient of static friction between tires and the road is 0.93 and the coefficient of kinetic friction between tires and the road is 0.75, what is the maximum velocity the car can have without
asked by Anonymous 
Physics
In a cyclotron (one type of particle accelerator), a deuteron (of mass 2.00 u) reaches a final speed of 8.4% of the speed of light while moving in a circular path of radius 0.551 m. What magnitude of magnetic force is required to maintain the deuteron in a
asked by David 
Chemistry Pleasee Help
Can you please help me with these problems, I followed the textbook but i am still not getting the write balanced equations.I am not sure if it is the phases or my balancing, or if i got the right answers and not submitting it correctly Please I really
asked by George K. 
biochemistry
Calculate the free energy of hydrolysis of ATP in a rat liver cell in which the ATP, ADP, AND Pi concentrations are 3.4, 1.3, and 4.8 nM, repectively. (ATP hydrolysis has delta G note= 30 kJ/mol)
asked by nicole 
math
A bag contains 100 bolts and 300 nuts 50% of each have been rusted 1 item is chosen at random. Find the probability that chosen item z rusted or a bolt.
asked by rehan 
Chemistry
Po218 is an alpha emitter with a halflife of 3.0 minutes. If a sample contains 42 mg of Po218, how many alpha emissions would occur in 6.0 minutes?
asked by Mr.Chemistry 
Physics
A long jumper leaves the ground at an angle of 20 degrees and travels a horizontal distanceof 7.0m before landing. What is the takeoff speed of the jumper? To be honest I really don't know how to solve it. A stepbystep explantion would be helpful.
asked by George 
Chemistry
seawater contains approximately 3.5% NaCl by mass and has a density of 1.02g/mL. What volume of seawater contains 1.0 g of sodium? Please Help!
asked by Anonymous 
Chemistry
An "empty" container is not really empty if it contains air. How may moles of nitrogen are in an "empty" twoliter cola bottle at atmospheric pressure and room temperature (25 degrees celcius)? Assume ideal behavior.
asked by Mickey 
statistics
A sample of 16 ATM transactions shows a mean transaction time of 67 seconds with a standard deviation of 12 seconds. State the hypotheses to test whether the mean transaction time exceeds 50 seconds.
asked by julie 
Chemistry
I did a lab for Organic Chemistry We did a simple distillation of an unknown alcohol to determine the boiling point, which was found to be 74*C The four possibilities for the unknown were methanol, ethanol, 1propanol and 2propanol. So from the boiling
asked by Laura 
geography
what is a deferred junction?
asked by jemima 
Physics
A m1 = 4.20kg block on a smooth tabletop is attached by a string to a hanging block of mass m2 = 2.60 kg, as shown in the figure. The blocks are released from rest and allowed to move freely.
asked by Manuel 
math
which greatest number when divided into 179 and 234 leaves a remainder of 3,? hint:subtract 3 from both no.
asked by aneika 
physics
The leg and cast in the figure below weigh 210 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w1 weighs 125 N. Determine the weight w2 and the angle á needed so that no force is exerted on the hip joint by the
asked by Anonymous 
PHYSICS
A 9.5kg monkey is hanging by one arm from a branch and is swinging on a vertical circle. As an approximation, assume a radial distance of 80 cm between the branch and the point where the monkey's mass is located. As the monkey swings through the lowest
asked by JULIA 
health
What are the three parts of nutrition? what are nutrients? name the six classes of nutrients? if you eat a healthy diet, you are more likely to be what? what is metabolism? the nutrients in food that provide energy are what three things? the sugar that
asked by Anonymous 
physics
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 33.0 m above sea level, directed at an angle theta = 46.9° above the horizontal, and with a speed v = 33.7 m/s. Assuming
asked by Bansnoob 
calculus
A shark, looking for dinner, is swimming parallel to a straight beach and is 90 meters offshore. The shark is swimming at a constant speed of 30 meter per second. At time t = 0, the shark is directly opposite a lifeguard station. How fast is the shark
asked by nesri 
physics
A stone is thrown vertically upward with a speed of 14.0 m/s from the edge of a cliff 89.0 m high
asked by Anonymous 
langue
Read each sentence. Write the subject on the subject line and the predicate on the predicate line. Zebra live in Africa 1. Subject_______________ 2. Predicate_______________
asked by luz 
General Physics
The 5 kg block in the figure slides down a frictionless curved ramp, starting from rest at a height of h = 3 m. The block then slides d = 12 m on a rough horizontal surface before coming to rest.What is the coefficient of friction between the block and the
asked by Kevin 
Chemistry
A 71 mg sample of a radioactive nuclide is administered to a patient to obtain an image of her thyroid. If the nuclide has a halflife of 12 hours, how much of the nuclide remains in the patient after 4.0 days?
asked by Mr.Chemistry 
physics
A father pushes horizontally on his daughter's sled to move it up a snowy incline, as illustrated in the figure, with h = 3.4 m and θ = 14°. The total mass of the sled and the girl is 35 kg and the coefficient of kinetic friction between the sled runners
asked by jibinn 
phusical science
spent steam from a electric generating plant leaves the turbines at 120 degrees celcius and is cooled to 90 degrees celcius liquid water by water from a heat exchanger. how much heat is removed by the cooling tower water for each kg of of spent steam
asked by Anonymous 
Physics
You whirl a 2.0 kg stone in a horizontal circle about your head. The rope attached to the stone is 1.5 m long. What is the tension in the rope?
asked by Anonymous 
Chemistry
Which of the following aqueous solutions should form a precipitate with aqueous Fe(NO3)3? 1. KCl 2. KNO3 3. KOH 4. K2SO4
asked by John 
physics
A baseball player hits a baseball (m = 0.145 kg) The ball is initially traveling horizontally with speed of 36 m/s. The batter hits a fly ball as shown, with a speed vf = 54 m/s. (a) What is the magnitude and direction of the impulse imparted to the ball?
asked by anna 
Physics
A 1,500 kg crate hangs motionless from a crane cable. What is the tension in the cable? Ignore the mass of the cable. Suppose the crane accelerates the crate upward at 1.2 m/s2. What is the tension in the cable now?
asked by Anonymous 
Physics
Can anyone answer part 3 for me? I've tried so many incorrect answers that I've already given up: 1.00, 1.50, 2.00, 3.00, 9.40 Question: A slingshot obeying Hooke's law is used to launch pebbles vertically into the air. You observe that if you pull a
asked by . 
chemistry
Hi, I posted this question earlier but still need some help: 1.3188g of antacid is weighed and mixed with 75.00mL of excess 0.1746 M HCl. The excess acid required 27.20 mL of 0.09767 M NaOH for back titration. Calculate the neutralizing power of the
asked by Serenity 
AP Chemistry
What is the value of w (work) when 2.6 moles of H2 expands from 25 liters to 50 liters against a constant external pressure of 1 atm, then expands further from 50 to 100 liters against a constant external pressure of 0.1 atm? Answer in calories. Answer in
asked by Nick 
Physics
A golf ball is driven, by Emilee, horizontally from an elevated tee with a velocity of 90.65 km/hr. It strikes the fairway 6.34 sec later. How far has it fallen vertically? and how did u find it please
asked by Bansnoob 
maths
a teen age boy wrote his own age after his father's from this new four place he subtracted the absolute value of the difference of their ages bto get 4289 the sum of their ages was
asked by sushma 
chemistry
An enzymatic hydrolysis of fructose was allowed to proceed to equilibrium at 25 degrees C. The original concentration of fructose1p was .2 M, but when the system had reached equlibrium the concentration of fructose 1p was only 6.52 * 10 5 M. Calculate
asked by nichole 
AP Physics
A 2.8 kg mass hangs at one end of a rope that is attached to a support on a railroad car. When the car accelerates to the right, the rope makes an angle of 9.0° with the vertical, as shown in Figure P4.68. Find the acceleration of the car.
asked by Frank 
geometry
Pyramid has a base 6 yards X 6yards. Its height is 4 yards. Volume= Surface Area= I got 60 square yards for the surface area but it was wrong.
asked by Linda 
PHYSICS
A satellite is placed in orbit 6.30*10^5 m above the surface of the planet Jupiter. Jupiter has a mass of 1.90 1027 kg and a radius of 7.14*10.7 m. Find the orbital speed of the satellite.
asked by ALLISON 
AP Physics
A woman at an airport is towing her 17.0 kg suitcase at constant speed by pulling on the strap at an angle of θ above the horizontal (Fig. P4.40). She pulls on the strap with a 26.0 N force, and the friction force on the suitcase is 10.0 N. What angle
asked by Frank 
Statistics
The weather forecaster reports that the probability of rain tomorrow is 10%. a. Which approach was used to arrive at this number? Was it the analytical (classical) approach, relative frequency approach or subjective approach?
asked by Rhea 
social studies
colonists hoped to find land in upper canada. Identify three bariers they faced, ranking them in importance
asked by pkd 
Physics
A skier is gliding along at 6.24 m/s on horizontal, frictionless snow. He suddenly starts down a 19.9° incline. His speed at the bottom is 23.3 m/s. What is the length of the incline?
asked by Anonymous 
PHYSICS
The blade of a windshield wiper moves through an angle of 90.0° in 0.49 s. The tip of the blade moves on the arc of a circle that has a radius of 0.6 m. What is the magnitude of the centripetal acceleration of the tip of the blade?
asked by ALLISON 
Physics
A skier of weight 700N is pulled at constant speed up a smooth slope, of inclination 15 degrees, by a force of magnitude P N acting at 25 degrees upwards from the slope. Find the value of P.
asked by Laura 
Physics
A 10kg wooden box rests on a wooden ramp. The coefficient of static friction is 0.50, and the coefficient of kinetic friction is 0.30. What is the friction force between the box and ramp if the ramp is at a 25o angle? the ramp is at a 45o angle? what is
asked by Anonymous 
Geometry
Yes, I'm this desperate. I just have problems with coming up with the statements for two column proofs. Answers would be appreciated. Given: line segment AX congruent to line segment DX, line segment XB is congruent to XC. Prove: Line segment AC is
asked by Derp 
daily oral language (DOL)
My answer was: We will see a play called "Cinderella" on Tuesday. My teacher says there is a comma after called. I say if there is a comma there, then doesn't one need to be after Cinderella also?
asked by Anonymous 
statistics
A major taxi company is concerned that its proportion of late arrivals has substantially increased in the past month. Historical data shows that on the average 18% of the company taxis have arrived late. In a random sample of 1,240 taxis, 310 taxis have
asked by julie 
Chemistry
A 1L flask is filled with 1.25 g of argon at 25 degrees celcium. A sample of ethane vapor is added to the same flask until the total pressure is 1.45 atm. What is the partial pressure of argon in the flask?
asked by Karen 
calculus
An ice cube is melting so that its edge length x is decreasing at the rate of 0.1 meters per second. How fast is the volume decreasing when x = 2 meters?
asked by nesri 
social studies
Is the paleo indians nomadic or sedentary?
asked by Allen 
Physics
A skier is gliding along at 7.49 m/s on horizontal, frictionless snow. He suddenly starts down a 14.4° incline. His speed at the bottom is 28.5 m/s. What is the length of the incline?
asked by Bala 
Math
James has an assigned seat for his flight to Denver. The seats on the plane are numbered 149. James's seat number is an odd number greater than 10 that is factor of 100. what is his seat number for the flight?
asked by Cameron 
Physics
A 1.80 kg object is connected to a spring of force constant 120 N/m. How far is the spring stretched if it is used to drag the object across a floor at constant velocity? Assume the coefficient of kinetic friction is 0.60.
asked by Anonymous 
Chemistry
The following reaction is a step in the commercial production of sulfuric acid. 2SO2(g) + O2(g) 2SO3(g) The equilibrium constant is very high at room temperature, but the reaction is very slow. It must be run at high temperatures to achieve a reasonable
asked by Anonymous 
Physics
Consider the circuit shown in the figure below. Use the following as necessary: R1 = 11.00 Ù, R2 = 1.40 Ù, and V = 6.00 V. (a) Calculate the equivalent resistance of the R1 and 5.00 Ù resistors connected in parallel. 1 Ù (b) Using the result of part
asked by chuck 
Biochemistry
the standard state free energy of hydrolysis of acetyl phosphat is G= 42.3 kJ/mol. Calculate the free energy change for the acetyl phosphate hydrolysis in a solution of 2mM acetate, 2 mM phospate and 3 nM acetyl phospahte.
asked by nikki 
physics/ math
Water flows (v approx. 0) over a dam at the rate of 660 kg/s and falls vertically 86 m before striking the turbine blades. Calculate the rate at which mechanical energy is transferred to the turbine blades, assuming 53% efficiency.
asked by josh 
Chemistry
The equilibrium constant for HI decomposition at 500 °C is 5.8×103. 2HI(g) > H2(g) + I2(g) At that temperature reactants and products are gaseous. (There is no change in the total number of moles, so Kc = Kp.) A sample of 0.49 mol of HI is placed in a
asked by Anonymous 
economics
Economic growth patterns decreased sharply from 19901991. Then they rose sharply and gradually leveled off up until 1999. However, inflation dropped steadily from 19901999. It decreased sharply at first and then leveled off from 19941994. Question 1 
asked by Arlena1998 
social studies
1. All of the following embraced the “national view” of federalism except a. John Marshall. b. Roger B. Taney. c. Franklin D. Roosevelt. d. Lyndon B. Johnson. e. Alexander Hamilton. I can't find the answer for this, they all federalist right? 2. What
asked by kenji 
physics
Three identical balls are thrown from the top of a building, all with the same initial speed. The first is thrown horizontally, the second at some angle above the horizontal, and the third at some angle below the horizontal. Neglecting air resistance, rank
asked by matt 
math
the sum of the hieghts of all the students in Mrs.Maloneys class is 1,472 in. The mean height is 5ft 4in how many students are in the class? (1ft = 12in)
asked by tiffy 
physics
For an interesting physics field trip, we visit Tahquamenon Falls in the Upper Peninsula. We measure the horizontal speed of the water at the top of the falls to be 3.98 m/s. How far vertically below the top edge of the falls does the velocity vector of
asked by Bansnoob 
AP Chem
A sample of solid KCl (potassium chloride) weighing 0.500 g is mixed with an unweighed sample of solid MgCl2 (magnesium chloride) and the mixture is then completely dissolved in water to form a clear solution. An aqueous solution of AgNO3 (silver nitrate)
asked by benji 
physics
If there were no air drag, how fast would drops fall from a cloud 2.4 kilometer above the Earth's surface? Answer in m/s.
asked by confused 
chemistry
if 400 mL of 0.1 M NaH2PO4 is mixed with 100 mL of 0.1 M H3PO4 what is the pH of the buffer mixture? The PKa of H3PO4 is 2.1.
asked by nikki 
Physics
A speedboat starts from rest and accelerates at +2.07 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.523 m/s2. Following this, the boat accelerates at 1.55 m/s2 for 8.00 s. What is the
asked by Emily 
Latin
I need help in translating this text. Primo Galli per vias hominum vacuas discurrebant ad praedam petendam; inde autem rursus ipsa solitudine absterriti secum "In Forum" inquiunt "ac propiora Foro loca redeamus. Ne qua fraus hostilis nos vagos excipiat."
asked by Bea 
physics
spherical aluminum ball of mass 1.22 kg contains an empty spherical cavity that is concentric with the ball. The ball just barely floats in water.Calculate the radius of the cavity.
asked by jenna 
PHYSICAL SCIENCE
What is happening with parameters(pressure, volume, and temperature)of an air bubble released by a frog at the bottom of a lake and explain why?
asked by ASHLEY 
Math
I am inside the path. (inside numbers 7,6,9,3) I am the difference of 2 numbers outside the path oyside numbers(7,8,5,6). What number am I? Use addition facts to help you.
asked by Clyde 
statistics
a.Find the margin of error E for a 90% confidence interval. (5 points) Round your answer to the nearest hundredths. .
asked by Anonymous 
Physics
A skier of weight 700N is pulled at constant speed up a smooth slope, of inclination 15 degrees, by a force of magnitude P N acting at 25 degrees upwards from the slope. Find the value of P.
asked by Laura 
physics
hello, I need some help with this work problem that goes... If the height of a helicopter above the ground is given by h=3.25t^3, where h is in meters and t is in sec. After 1.50s, the helicopter releases a small mailbag. How long after its release does
asked by rose 
Trig
Find the reference number and the terminal point determined by t. a. t =  7(pi)/6
asked by Mars 
Chemistry Help
I have tried usingg the molecular formula, formulas in the text book but my answers dosent match any of the multiple choice answers, can someone help? For each of the reactions shown, calculate the mass (in grams) of the product formed when 10.7 g of the
asked by Kelly 
Biochemistry
If 400 mL of 0.1 M NaH2PO4 is mixed with 100 mL of 0.1 M H3PO4, what is the pH of the buffer mixture. The pKa of H3PO4 is 2.1.
asked by Please Help!! 
Calculus
Let f(x)=1x^3+2.5x+3. In this problem you will estimate f'(3) by computing the average rate of change of f(x)over a small interval. Round your answers to three decimal places. 1. First choose the interval of length .1 with 3 being the left endpoint of
asked by kennedy 
7th grade
if the median height is 5ft 2in how many students in mrs maloneys class are 5ft 2in or taller? how many are shorter?
asked by tiffy 
Math
Write an equation of the line satisfying the given condition. a) x intercept = 3 y intercept=2 I am really not sure how to start here. b) vertical line containing (5,1) Would it be y=5x1? c) parallel to the line 3x4y=5 and containing the points (3,6)
asked by Hannah 
5th grade
i need help! how you Estimating quotients how you solve a problem. like this one? 195 divided 4 in estimating quotient?
asked by emilio 
Calculus
I don't understand this question. Q. In the theory of relativity, the mass of a particle with velocity "v" is m = mo/√(1v2/c2) where mo is the mass of the particle at rest and "c" is the speed of light. What happends as v>c? Thank You!
asked by George 
English 2
1. Which is an example of verbal irony as spoken by Antigone? a. "You have yourself to consider, after all." b. "You must decide whether you will help me or not." c. "...and if I must die/ I say that this crime is holy..." d. "...if it means death/ It will
asked by mysterychicken 
statistics
Based on a computed pvalue of .01 and an alpha of .022, what is our decision in hypothesis testing?
asked by julie 
3rd grade
Explain how 8 ten thousand can be equal to 80,000.
asked by Bill 
history
is late neo indians nomadic or sedentary?
asked by allen 
college/Public Speaking
What might be some modern examples of speech styles that weren't discussed in the lecture? Don't think just in terms of public speaking. Consider such elements as how technology has changed communication in the last few years. Defend why you consider these
asked by Jaclyn 
assessment of learning
When to use an identification type of test? Steps or guidelines in making an identification type of test. Thanks.
asked by klarmaesen 
physics
A 23 kg suitcase is being pulled with a constant speed by a handle that is at an angle of 29° above the horizontal. If the normal force exerted on the suitcase is 150 N, what is the force F applied to the handle?
asked by ash;ley 
math
andy has 23 coins worth 3.65 consisting of only quarters and dimes.how manydimes does he have?
asked by Bob 
CIS 105
Most personal computers come equipped with a version of the Windows operating system, whereas Apple personal computers have a different operating system. Other choices are also available, such as UNIX and Linux. Why do you think Windows is so prevalent?
asked by Jasmine 
statistics
Based on a random sample of 25 units of lawnmowers, the average weight is 102 lbs., and the sample standard deviation is 10 lbs. We would like to decide if there is enough evidence to establish that the average weight for the population of lawnmowers is
asked by julie 
MATH
A sphere has five times the volume of a right cone that has a radius of 4.6 cm and a height of 7.7 cm. Determine the radius of the sphere to the tenth of a centimetre. This question is multiple choice and these were the options: A. 2.2cm B. 3.4cm C. 5.9cm
asked by Anonymous 
Physics
A 10kg wooden box rests on a ramp that is lying flat. The coefficient of static friction is 0.50, and the coefficient of kinetic friction is 0.30. What is the friction force between the box and ramp if no force horizontal force is applied to the box? a 20
asked by Anonymous 
Thermochemistry
Path A A sample of gas in a cylinder of volume 3.96 L at 327 K and 3.28 atm expands to 7.34 L by two different pathways. Path A is an isothermal, reversible expansion. Calculate the work for Path A. Answer in units of J. Path B Path B has two steps. In the
asked by Nick 
math
which greatest number when divided into 1250 and 1000 leaves a remainder of 26 and 28 respectively, can u submit the ans.?
asked by aneika 
Chemistry
The equilibrium constant for HI decomposition at 500 °C is 5.8×103. 2HI(g) > H2(g) + I2(g) At that temperature reactants and products are gaseous. (There is no change in the total number of moles, so Kc = Kp.) A sample of 0.49 mol of HI is placed in a
asked by Anonymous 
statistics
One student is selected at random from a student body. Suppose the probability that this student is female is 0.5 and the probability that this student works part time is 0.6. Are the two events "female" and "working" mutually exclusive?
asked by nasta 
homework
What have forecast of economic growth done consistently? Economic growth patterns decreased sharply from 19901991. Then they rose sharply and gradually leveled off up until 1999. However, inflation dropped steadily from 19901999. It decreased sharply at
asked by Arlena1998 
Chemistry
how many milliliters of a 0.78 M HCl solution are needed to react completely with 6.4 g of zinc to form zinc(II) chloride? Answer in units of mL.
asked by Nathan Espinosa 
physics
A 120kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 400 N. For the first 17 m the floor is frictionless, and for the next 17 m the coefficient of friction is 0.34. What is the final speed of the crate?
asked by josh 
algebra honors
I was placed into algebra honors instead of advanced math.. I am in 7th grade.. I have to maintain an 80% for the entire year or go to virtual school all summer.. My question is: Is there a special technique, formula, or very useful site that might help me
asked by Jarrad 
Physics
You are driving to the grocery store at 18.2 m/s. You are 120.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.270 s and that your car brakes with constant acceleration. How far are you from the intersection
asked by Bala 
statistics
A bag cntains 100 bolts nd 300 nuts 50% f each hv been rusted 1 item z chosen at random. Find da probability dat chosen item z rusted or a bolt.
asked by Anonymous 
music
How has Islam shaped conceptions of music for the peoples of the Middle East? I would rather a specific answer instead of saying using wikipedia. Thank you
asked by Jake 
economics
What have forecast of economic growth done consistently? Economic growth patterns decreased sharply from 19901991. Then they rose sharply and gradually leveled off up until 1999. However, inflation dropped steadily from 19901999. It decreased sharply at
asked by Arlena1998 
statistics
Given a test statistic of z= 1.50, the pvalue for a righttail (upper tail) test is approximately
asked by julie 
science
Suppose 65.8 g of Carbon monoxide reacts with 8.6 g of hydrogen. What is the limiting reagent? What is the theoretical yield of the product in moles and grams? If the actual yield of the product is 3.57 g, what is the percent yield?
asked by Anonymous 
11th grade
how do you determine what atom gained or lost electrons
asked by Anonymous 
Chemistry
Draw the lowest energy conformation of 3ethyl2,4,4trimethylheptane, depicting the C3C4 bond on a sawhorse. How would i do this? i am so lost
asked by Lisa 
Physics
A skier is gliding along at 7.49 m/s on horizontal, frictionless snow. He suddenly starts down a 14.4° incline. His speed at the bottom is 28.5 m/s. What is the length of the incline?
asked by Bala 
Physics
A 1.50 kg object hangs motionless from a spring with a force constant of k = 250 N/m. How far is the spring stretched from its equilibrium length?
asked by Anonymous 
Physics
A 120kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 400 N. For the first 17 m the floor is frictionless, and for the next 17 m the coefficient of friction is 0.34. What is the final speed of the crate?
asked by amanda 
Chem
Sulfur burns in the presence of oxygen to produce sulfur dioxide. Explain how the mass of sulfur dioxide produced compares to the combined mass of sulfur and oxygen.
asked by Josh 
Physics
You are driving a 2520.0kg car at a constant speed of 14.0 m/s along a wet, but straight, level road. As you approach an intersection, the traffic light turns red. You slam on the brakes. The car's wheels lock, the tires begin skidding, and the car slides
asked by Preston 
chemistry
a reaction is first order and it takes 324 minutes for the reaction to be 50% complete. How long will it take for the reaction to be 85% complete at the same temperature?
asked by csb 
physics
2. A car of mass 1540 kg traveling at 28 m/s is at the foot of a hill that rises 125 m in 3.6 km. At the top of the hill, the speed of the car is 8 m/s. Find the average power delivered by the car's engine, neglecting any frictional losses.
asked by rizzo 
Math
I am outside the path. outside numbers 8,10,3,7)I am the difference of 2 numbers inside the path. Inside umbers are (2,6,9,10)I am less than 5. What number am I? I am inside the path. Inside numbers (2,4,6,7,9)`I am the difference of 2 numbers outside the
asked by Clyde 
social studies
Is the meso indians nomadic or sedentary?
asked by Allen 
Math(Please check! Thank You)
List the intercepts and test for symmetry. y^2  x  4 = 0 I got (4,0) and (0,2) for the intercepts. y^2  x  4 = 0 Is not symmetrical to the x axis, correct? y^2(x)  4 = 0 Is not symmetrical to the y axis, correct? y^2 + x  4 = 0 Is not
asked by Hannah 
Chemistry Help
Calculate how many moles of NH_3 form when each quantity of reactant completely reacts 3N_2H_4(l)>NH_3(g)+N_2(g) 2.5mol N_2H_4 4.05mol N_2H_4 65.8g N_2H_4 4.52kg N_2H_4
asked by Paul 
physics
A 120kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 400 N. For the first 17 m the floor is frictionless, and for the next 17 m the coefficient of friction is 0.34. What is the final speed of the crate?
asked by Kim 
Physics
A metal rod of length (L) moves with velocity (v), perpendicular to its length, in a magnetic field B, which is perpendicular to both the rod and its velocity. If the length of the rod is doubled, what happens to the electric field in the rod?
asked by Promise 
math.7th gradee.
the worksheet says to copy and place parentheses to make each statement true. . . but i have NO ideaa what that means..? cann anyone helppp!
asked by lyssaa.(: 
Physics
Mass 1 (10 kg) rests on a table connected by a string to Mass 2 (5 kg). If s = 0.30 and k = 0.20, what is a) the acceleration of each block? (Draw the figure and proceed). b) the tension in the connecting string?
asked by Anonymous 
Math
Kate is a salesperson in a retail store and earns $88 per week plus 11% of her weekly sales. If Kate made $154 one week,what were her sales that week? this is another word problem. I don't know the equation I was thinking 88 + .11 = 154x
asked by Amy 
Physics
A projectile is fired at an angle of 60degree with the horizontal and with the initial velocity 80m/s calculate (a) the time of flight(b)time to reach maximum height(c)it range(d)the velocity of projection 2seconds after been fired
asked by Sugarkanpaw 
Physics
Two blocks are connected by a string as shown in the figure. What is the acceleration, assuming there is no friction? (Draw the figure and proceed).
asked by Anonymous 
geometry
If AC = 15 centimeters, and BC = 12 centimeters, which does AB equal?
asked by beto 
Ash
A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 6.80 m/s. During the second part, she rides for 36 minutes at an
asked by Anonymous 
Trig
Find the value of the six trigonometric functions. t = 7(pi)/4 Can you show me step by step so I can see how this is solved? Also, do I need to graph this first in order to understand or begin the problem? I am trying to self teach  but having problems.
asked by Mars 
Government
I'm in Pre AP civics.. can you help me with my essay question? Please? :) How is the constitutional principle of federalism reflected in the formal amendment process?
asked by Suzie Q 
Science
I need to unscamble the word 'IOLKSCAPL'
asked by John 
calculus
can someone check these for me: 18. All edges of a cube are expanding at a rate of 6 cm per second. How fast is the volume changing when each edge is a) 2 cm and b) 10 cm. a)72 cm^3/sec b)1800 cm^3/sec 20. The formula for the volume of a cone is
asked by Anna 
math
A man is walking at an average speed of 4 miles per hour alongside a railroad track. A freight train, going in the same direction at an average speed of 30 miles per hour, requires 5 seconds to pass the man. How long is the freight train? Give your answer
asked by Amy 
6th grade
if you had a fraction strip folded into tenths, what fractional lengths could you measure with the strip?
asked by Anonymous 
chem
how do I figure out the molecular formula for The concentration of lead (II) ions in a sample of polluted water that also contains nitrate ions is determined by adding solid sodium sulfate.
asked by cindy 
Math(Please help)
Write an equation of the line satisfying the given condition. a) x intercept = 3 y intercept=2 I am really not sure how to start here. b) vertical line containing (5,1) Would it be y=5x1? c) parallel to the line 3x4y=5 and containing the points (3,6)
asked by Hannah 
Politcal Science
The principle of selfgovernment emphasizes majority rule whereas the principle of liberty emphasizes individual rights. These principles a. are universal and are the foundation of all legitimate governments. b. have no real meaning in practice. c. have
asked by kenji 
college physics
Let the radius of the circular segment be 108 m, the mass of the car 1861 kg, and the coefficient of the static friction between the road and the tire 0.9. The banking angle is not given. Find the magnitude of the normal force N which the road exerts on
asked by mark 
Science
What is a experimental investigation? What is a descriptive investigation?
asked by Emily 
PROBABILITY
5.70 The probability is 1 in 4,000,000 that a single auto trip in the United States will result in a fatality. Over a lifetime, an average U.S. driver takes 50,000 trips. (a) What is the probability of a fatal accident over a lifetime? Explain your
asked by Anonymous 
statistics
5.70 The probability is 1 in 4,000,000 that a single auto trip in the United States will result in a fatality. Over a lifetime, an average U.S. driver takes 50,000 trips. (a) What is the probability of a fatal accident over a lifetime? Explain your
asked by Anonymous 
chemistry
What are three thermodynamic quantities that are not state functions and three that are?
asked by nicki 
Physics
A cheetah is hunting. Its prey runs for 2.56 s at a constant velocity of +10.02 m/s. Starting from rest, what constant acceleration must the cheetah maintain in order to run the same distance as its prey runs in the same time?
asked by Britt 
Math
What is the number? It is greater than 30 and less than 40. If you add the digits, the sum is 10.
asked by Grace 
12th grade art
Will someone plz help me. I have looked through website after website and I cant find the right peron. Just like a page address or something or explain about his works and his life. Please and thanks!
asked by steenwick artist composer from the baroque period. 
Math HELP
A man is walking at an average speed of 4 miles per hour alongside a railroad track. A freight train, going in the same direction at an average speed of 30 miles per hour, requires 5 seconds to pass the man. How long is the freight train? Give your answer
asked by Amy 
Science
What is the name of a gene that can be masked by another gene?
asked by Jim 
calculus
The sides of an equilateral triangle are increasing at the rate of 5 centimeters per hour. At what rate is the area increasing when the side is 10 centimeters?
asked by nesri 
calculus
there are two tangents lines to the curve f(x) = 3x^2 that pass through the point p =0,1 find the x coordinates of the point where the tangents line intersect the curve
asked by mike 
physics
Is it possible for a frictional force to increase the mechanical energy of a system? If so, give examples.
asked by matt 
Physics
Mass 1 (10 kg) rests on a frictionless table connected by a string to Mass 2 (5 kg). Find a) the acceleration of each block. (Draw the figure and proceed). b) the tension in the connecting string.
asked by Anonymous 
social studies
I post those questions earlier but no one reply to them. Complications in the practice of America’s ideals occurs because these ideals a. are general principles, not precise rules. b. sometimes conflict with one another. c. are only one of the many
asked by kenji 
Physics
A ball is thrown upward from the ground with an initial speed of 21.5 m/s; at the same instant, a ball is dropped from rest from a building 17 m high. After how long will the balls be at the same height? The acceleration of gravity is 9.81 m/s2. Answer in
asked by Anonymous 
Math
2gtm=5mgh (solve for m)
asked by Courtney 
MATH ALGEBRA (2ND TIME POSTING! ) Please Help!! :)
The Cost of installing new kitchen cabinets is $150 for delivery for all the cabinets and an additional $45 to install each cabinet. a) Develop a model to give the total cost for a set of n cabinets. b) What is the total cost for a set of 18 cabinets? c)
asked by vid. 
chemistry
I did a lab about melting point. It is asking me for the purity of the compounds? How do I find it? Do I use melting points or percent yield?
asked by Yoo 
chemistry
write a balanced chemical equation for the reaction that occurs when aqueous solutions of sodium chloride and sodium iodate are mixed
asked by k 
Physics
rry leaves home at 4:07 and runs at a constant speed to the lamppost. He reaches the lamppost at 4:11, immediately turns, and runs to the tree. Larry arrives at the tree at 4:22. What is Larry's average velocity during his entire trip, if the lamppost is
asked by Brian 
chemistry
why does atomic size decrease cross a period? why does atomic size increase down a group?
asked by Anonymous 
physics
Consider the following statement: “When a rifle is fired horizontally, the bullet leaves the barrel and doesn’t drop at all for the first 45 meters of flight.” Is this statement true? Wouldn't this statement not be true because you don't know the
asked by jon 
college physics
Is it possible for a frictional force to increase the mechanical energy of a system? If so, give examples.
asked by matt 
algebra
90% of what number is 45?
asked by Robert 
algebra
I need help showing me how to do some problems.. 5. 280.3y = 0.7y12 I got 10/400 or 0.025.. and 3c4c+1=5c+2+3 I ended up getting c=1 but the book says it's wrong too.. What am I doing wrong?
asked by Katherine 
social studies
Please check my answers 1) The American colonists based their right to revolt against Britain’s authority on the claim that a. the wealth of the new world belonged to them, since they had developed it through their labor. b. the colonial charters had
asked by kenji 
Physics
You are driving to the grocery store at 18.2 m/s. You are 120.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.270 s and that your car brakes with constant acceleration.How far are you from the intersection
asked by Bala 
Science
How do you represent data in a graph?
asked by Jack 
Physics
A sprinter explodes out of the starting block with an acceleration of +2.79 m/s2 , which she sustains for 1.65 s. Then her acceleration drops to zero for the rest of the race. What is her velocity at t = 1.65 s and at the end of the race? Answer 1 of 2
asked by Bala 
physics
What is the acceleration of a vehicle that changes its velocity from 120 km/h to a dead stop in 7 s? Answer in km/h·s
asked by confused 
physics
Water flows (v approx. 0) over a dam at the rate of 660 kg/s and falls vertically 86 m before striking the turbine blades. Calculate the rate at which mechanical energy is transferred to the turbine blades, assuming 53% efficiency.
asked by Kim 
math
box of chalk and 2 staplers cost $10.00. Three boxes of chalk and 2 staplers cost $18.00. How much is a box of chalk and a stapler?
asked by hayden 
biology
suppose 23mL of NaOH was required. How much Carbonic Acid was neutralized? 1L of .01 NaOH contains ____ mol NaOH? lmL of .01 NaOH contains _____mol NaOH? 23mL of .01 NaOH contains _____ mol NaOH? 2 mol of NaOH react with 1 mol H2CO3 2.3 x 10^4 mol of NaOH
asked by Anonymous 
chemistry
A high diver is standing at the edge of a platform, just about to leap over the side. At the top of the platform, what is the relationship between potential and kinetic energy?
asked by Kaiya English 
math
if I buy 3 large sandwich wraps to serve at a picnic and 9 people will be at the picnic, show 3 different ways to cut the sandwiches so that each person gets an equal share
asked by amy 
math
if I buy 3 large sandwich wraps to serve at a picnic and 9 people will be at the picnic, show 3 different ways to cut the sandwiches so that each person gets an equal share
asked by amy 
government
I need help with this essay question!! PLEASEE! How do the formal amendment process and constitutional change by other means compare as expressions of popular sovereignty?
asked by Goober 
Chemistry
Does the molarity change with the volume? For example we did an experiment in lab with one trial containing 0.1 M KI at 100 mL and another with 50mL. So does the molarity (M) change with volume change?
asked by Anonymous 
Physics
An 18yearold runner can complete a 10.0km course with an average speed of 4.48 m/s. A 50yearold runner can cover the same distance with an average speed of 4.18 m/s. How much later should the younger runner start in order to finish the course at the
asked by Bala 
2nd grade
Please explain how you solve these problems. It is greater than 43 and less than 52.If you add the digits,the sum is 8? This us confusing.
asked by Kaiya 
English
What are two themes that may be present in a folktale?
asked by Linda 
Phyiscs
A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 6.80 m/s. During the second part, she rides for 36 minutes at an
asked by Ash 
EnglishWriteacher
EnglishComposition The delayed thesis is the starting sentence. The conclusion is at the end. In the course of time an entity begins to comprehend the significance of its dear ones in its existence. Katherine, the protagonist of “All is calm”, by Ann
asked by Sara 
Business MGMT
Can you help me with case study on leadership and communication MGMT 303 week 6
asked by larry 
science
Fill in the blank... The amount of volume an object displaces in water is _____(less than/equal to/grater than) the volume of the object. please help cazz im going to have a test tommorrow about this ;)
asked by anonymous 
math
What similarities and differences do you see between functions and linear equations studied in Ch. 3? Are all linear equations functions? Is there an instance when a linear equation is not a function? Support your answer. Create an equation of a nonlinear
asked by afrika 
physics
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 26 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 135 m), the block swings toward
asked by ANDREW 
social studies
Which of the following is not an objective of the Constitution? a. Protect the rights of the minority b. Establish the structure of the government c. Protect individual worth and dignity of all people d. Protect the rights of the majority
asked by lindsey 
spanish
"Para las vacaciones, sólo pienso ver la tele." "Pero,_____" a. ¿hace mucho tiempo que ves la tele? b. ¿la puedes ver los miércoles? c. no podemos ir de vacaciones d. ¿no te van a doler mucho los ojos? Is the person watching tv only to see the
asked by Lily 
Physics
A sprinter explodes out of the starting block with an acceleration of +2.79 m/s2 , which she sustains for 1.65 s. Then her acceleration drops to zero for the rest of the race. What is her velocity at t = 1.65 s and at the end of the race?
asked by Bala 
Finance
Marcia and Phil Helm, a couple in their thirties, have been married for several years. They have no children, and each has a professional career. Marcia is a trainee for a management position at a large department store, and Phil is an engineer at an
asked by Missy 
chemistry
which is a chemical property? volume, mass, melting point, flammability or temperature?
asked by Anonymous 
physics
Explain each of the following questions. ( a) Can an object– Earth system have kinetic energy and not gravitational potential energy? ( b) Can it have gravitational potential energy and not kinetic energy? ( c) Can it have both types of energy at the
asked by matt 
chemistry
A high diver is standing at the edge of a platform, just about to leap over the side. At the top of the platform, what is the relationship between potential and kinetic energy?
asked by Kaiya English 
physics!!
A skateboarder, starting from rest, rolls down a 14.0m ramp. When she arrives at the bottom of the ramp her speed is 7.40 m/s. (a) Determine the magnitude of her acceleration, assumed to be constant. (b) If the ramp is inclined at 20.5° with respect to
asked by michelle 
algebra
Evaluate x+y/5 for x = 34 and y = 6
asked by Jenny 
chemistry
A 0.2528 g sample of a mixture containing sodium carbonate and sand requires 12.32 mL of 0.2409 M HCl(aq). Assuming that the sand does not react with the HCl(aq), what percentage of the mixture is sodium carbonate? Balanced equation: Na2CO3(s) + 2 HCl(aq)
asked by Jordin 
calculus
differentiate f(x)=Tan^3(e^2x +1)
asked by Amber 
algebra
what is the quotient of the sum and difference of 370 and 25
asked by Anonymous 
Chemistry
Oxidation State numbers For Fe3+ i got 3+ b/c Oxidation state monatomic ion = ionic charge and i got that answer wrong. i am receiving wrong answers for these below aswell. I used these rules for the following Alkali metals are always +1; alkaline earths
asked by Jerry 
college chemistry
please help! If the initial pressure of I2(g) is 1.738 atm, calculate the % decomposition of I2(g) when the reaction comes to equilibrium according to the balanced equation. The value of Kp at 1000 K is 0.254. The initial pressure of the reaction products
asked by sparkle 
Physics
A skateboarder shoots off a ramp with velocity of 6.5 m/s directed at a 59 degree angle. The end of the ramp is 1.3m above the ground. a)How high above the ground is the highest point that the skateboarder reaches? b) When the skateboarder reaches the
asked by Justin 
math
need help making a Data Bar Graph using Maximum:18 Mode:7 Range:13 Median:12
asked by gabrielle 
infectious diseases epidemiology
1. You are in charge of HIV prevention in Sydney, Australia, which celebrates a 2week long Gay and Lesbian Mardi Gras and is famous for the sexual liberties taken during that period. Which groups, from those listed below, do you target for interventions?
asked by naushin 
math
which fraction is greater 15/31 or 27/50
asked by kk 
English
I need to make a list of items each student can find in his pencil case or rucksack. I want to be sure the list is correct. 1) Lined, squared exercisebooks, ring binder (or ring file?), colored pencils (or pastels), felttip pens, ballpoint pens,
asked by Franco 
12th grade
Carefully describe the following distribution of ages (in years). Remember to include the shape, center, and spread. {20, 22, 24, 26, 23, 19, 34, 44, 25, 26} Are there any outliers? Justify your answer with calculations and explanation.
asked by Anonymous 
Physics
Mass 1 (10 kg) rests on a table connected by a string to Mass 2 (5 kg). Find the minimum coefficient of static friction for which the blocks remain stationary.
asked by Anonymous 
algebra
In 1995 the life expectancy of males in a certain was 61.8 years. In 1999, it was 64.5 years. Let E represent the life expectancy in tears t and let t represent the number of years since 1995. The linear function E(t) that fits the data is E(t)=____t
asked by James H. 
literature
which poet, who seems be using iambic pentameter, bends the meter most
asked by mike rodirguez 
English
Can you check if my corrections are OK? Thank you. 1) He told her that her husband's last words had been her name. 2) He arrived at the central station walking. (Better: he walked to the central station?) 3) The Expedition consisted of groups of ivory
asked by Franco 
Physics
You drive due east at 78 km/h for 55 min. Then you follow a road going 60 degrees south of east, going 99 km/h for another 38 min . Find your total displacement.
asked by Marcus 
Math(Please check)
Lsit the intercepts and test for symmetry. y^2  x  4 = 0 I got (4,0) and (0,2) for the intercepts. y^2  x  4 = 0 Is not symmetrical to the x axis, correct? y^2(x)  4 = 0 Is not symmetrical to the y axis, correct? y^2 + x  4 = 0 Is not
asked by Hannah 
Math
Can you get 17 with the numbers 1,3,3,6? You can add sub mult and divide. I've tried and can't get an answer.
asked by Lola 
Chemistry
The law of conservation of mass states that no change is observed in the total mass of the substances involved in a chemical change. Thus the mass of the sulfur dioxide produced is the same amount as the sulfur and oxygen that went in. Does this sound
asked by Josh 
Physics
You are driving to the grocery store at 18.2 m/s. You are 120.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.270 s and that your car brakes with constant acceleration.How far are you from the intersection
asked by Bala 
physics
Madhuri throws a stone the stone is thrown horizontally at 33.9 m/s from the top of a 297.9m cliff. 1.How high is the stone after 3.35 sec? 2.What is the range? equations to find please.
asked by Bansnoob 
history
Napoleon Bonaparte has been called the last of the enlightened despots. Discuss how his policies and practices resemble those of the enlightened monarchs of the old regime.
asked by nivia walton 
english
Please answer this question mi hoo na and kal ho na ho translat in english
asked by Dewesh kumar 
English
In the following sentence, do I have the complete subject correct? Chunks of floating ice smaller than 50 feet long and with less than 17 feet showing above the water (end of subject) are called growler or bergy bits.
asked by Mary 
Physics
You are driving to the grocery store at 14.8 m/s. You are 140.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.440 s and that your car brakes with constant acceleration. How far are you from the intersection
asked by Emily 
Physics
A 5.0 kg object (m1) is connected to a 10.0 kg object (m2) by a string. If a pulling force F of 20 N is applied to the 5.0 kg object as shown, A) what is the acceleration of the system? B) what is the tension in the string connecting the objects? (Assume a
asked by Anonymous 
college physics
Explain each of the following questions. ( a) Can an object– Earth system have kinetic energy and not gravitational potential energy? ( b) Can it have gravitational potential energy and not kinetic energy? ( c) Can it have both types of energy at the
asked by matt 
geometry
how would I draw a shoe using 2 acute and 2 obtouse angles
asked by Gail 
Math
How do I use KHDMDCM
asked by Anderson 
ITALIAN
Hi, Can someone please tell me if I wrote this correctly in Italian? I included the English of what I meant to say. Q: Aspetta signore, posso leggere il tuo palmo? (Wait sir, can I read your palm?) A: No, grazie. (No, thank you.) Q: Aspetta! Vedo che hai
asked by Cef 
Algebra
How to factor this x^(3)  8 = 0
asked by Amy 
Physical Science
Why a person can lie down(carefully) on a bed of nails, but can't step(without being injured)on a nail?
asked by ASHLEY 
science
An airplane flies at 200km/hr. What is the velocity?
asked by summer 
math
Question: Use logical equivalnces to show that the propositions !p > (q>r) and q > (p v r) are logically equivalent. I AM SO DAMN CONFUSED! I tried to solve !p > (q > r) first and I only got to !p > (!q v r) I cant see any other rule that would apply
asked by rick 
math
Place six coins on the table in the arrangement shown in the first row below... Start like this...head tales head tales head tales Your task is to produce the second arrangement shown by flipping coins according to thsi rule: you must flip two adjacent
asked by Katherine 
Science
How are the structures in genetics related?
asked by Jack 
science:)
how do you measure the mass of a rectangular solid? list steps how do you measure the mass of an irregularly shaped solid?list steps.
asked by anonymous 
math
Suppose that f(t)is a function for which f(80)=8.7and f'(80)=2.2. Use this information to estimate the following. Round your answer to one decimal place. f(801)
asked by Min 
3rd grade
using four different digits, what is the least sum you can get when you add two digit numbers?
asked by james 
algebra
Bob has $4000 invested in an account that earns 4.75% simple interest. He has another account that earns 6.5% simple interest. How much is invested in the 6.5% account if it earned $425.10?
asked by Anonymous 
VESPR theory
Is a bent tetraheydral the only shape that doesn't have a precise angle (as in it's less than 109.5 degrees)?
asked by Bob 
Math
I determined that 5 divided by 8 equals 0.625; however, I cannot determine how the book arrived at 0.625 equaling the fraction 4 5/8. My conversion of 0.625 is fraction 5/8.
asked by Bonnie (mom) 
3rd grade
write in order from least to greatest the six numbers whose digits are 2, 8, and 9
asked by michelle 
Math.. 3rd time posting /: HELP PLEASE!
Tell whether each number is a real number, rational number, irrational, interger, or whole number, and then order then from least to greatest. ( Square root sign) 49, 8, ( square root sign) 4, and 3.
asked by Dawn 
education
Why study educational history?
asked by Beverly 
english
Please correct the following sentence for a daily oral language question: we will see a play called cinderella on tuesday I do not agree with how it was graded.
asked by Sandy 
college chemistry
The value of the equilibrium constant, Kc, at a certain temperature is 4.00 x 101. Would the reaction as represented by the chemical equation favor reactants or products? Enter P or R. N2(g)+3H2(g) = 2NH3(g)
asked by sparkle 
12th grade
Can somebody tell me what to do next for solving polynomial equations? x^3  3x^2 4x + 12= 0 I got the factors of 12 and i used 2. (x+2) (x^2 + x + 12)=0 What do I do next?
asked by Joe 
Physics
You are driving to the grocery store at 18.2 m/s. You are 120.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.270 s and that your car brakes with constant acceleration.How far are you from the intersection
asked by Bala 
AP English Lit.
So I'm doing an essay about the Mosque and being built near Ground Zero, but I have no idea on how to start my thesis. My opinion, to me, I don't really care because people are entitled to their opinion, which it should be built or not. Any ideas?
asked by Angie 
chem
Ionic bonds and covalent bonds, which one is the stronger. My present teacher said that covalent bond is the strongest one. I learned ionic interaction is the strongest and many chem. books say so. Now i am confused. Is my present teacher right. Please
asked by bun 
SOCIAL STUDIES
WHAT DOES REGION PHYSICAL MEANS?
asked by erick 
chem
Recycling of PET soft drink bottles involves heating with methanol and an acid catalyst to liberate ethylene glycol and dimethylterphthalate (methyl ester of pthalic acid). These can then be used as monomers to make new PET products. Write an equation for
asked by Mark 
Politcal Science
Complications in the practice of America’s ideals occurs because these ideals a. are general principles, not precise rules. b. sometimes conflict with one another. c. are only one of the many sources of political action. d. are enduring and powerful. e.
asked by kenji 
algebra
34 x (n x 2) = 680? me understand
asked by Anonymous 
To Writeacher
Writeacher I have a post on my English assignment, and I have it addressed to you, may you please take a look at it, cause I really need help, thanks.
asked by Sara 
5th grade math
city council decides to number homes on a new sub divison. However they leave out numbers that are multiples of 3 or 4 and the last home number is 67. How many homes are there on this street?
asked by tryston 
english
compare the kansas city star copy style and tips for writing for the web
asked by danny 
english
Please answer this question mi hoo na of in english
asked by Dewesh kumar 
English
Thanks for the correction I appreciated it.I am reposting the narrative essay/summary please see if I have run on sentence, comma etc. It is due tomorrow.Thanks. When I was in Africa, my mind and heart were involved in things such as what it took just to
asked by Lindah 
Physics
Free Fall: Tara throws a baseball down to Nathan. If she throws it with a speed of 2.0m/s and it lands in Nathan's hand with a speed of 10.0m/s, how far above Nathan is Tara?
asked by Jane 
college physics
Two workers are loading crates onto a pick up truck. Worker 1 lifts his crate straight up from the ground to the truck. Worker 2 slides his crate up a ramp which has frictionless rollers. Which statement is true about the work being done on the crate? a.
asked by matt 
AP Chemistry !
Can you help me with this? If you can, do it as detail as you can. If not, you can just give me the answer, i'll try to figure how you did it : A sample of gas in a cylinder of volume 3.96 L at 327 K and 3.28 atm expands to 7.34 L by two different
asked by Nick 
Calculus
It says find the numbers, if any, at which the given function is discontinuous. f(x)=abs(x+2) *abs  absolute value f(x)=e^xsinx for both of these problems i saw that it was continuous but i don't really know
asked by Leanna 
12th grade Calculus
It says find the numbers, if any, at which the given function is discontinuous. f(x)=abs(x+2) *abs  absolute value f(x)=e^xsinx for both of these problems i saw that it was continuous but i don't really know
asked by Leanna 
Calculus
Find the horizontal and vertical asymptotes of f(x)=csc^1(x) if they exist.
asked by Jackie 
Physics
You are driving to the grocery store at 18.2 m/s. You are 120.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.270 s and that your car brakes with constant acceleration.How far are you from the intersection
asked by Bala 
ph
You are driving to the grocery store at 18.2 m/s. You are 120.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.270 s and that your car brakes with constant acceleration.How far are you from the intersection
asked by Bala 
Math
A number has 4 digits. The sum of the first and last digit is twice the second digit. The second digit is 2 less than the third digit. The last digit is twice the first digit. Some of the digits are alike. What is the number?
asked by John 
english 7th grade
I am to find the subject complement and linking verb in this sentence. At first we felt overwhelmed by the job ahead of us. Could you please help me understand , the examples in my book are not helping. Thank you
asked by spencer 
Chemistry
If 3.0 L of a 5.0 M SrCl_2 solution is diluted to 40 L, what is the molarity of the diluted solution?
asked by Lyz 
Math
State whether the equation defines y as a function of x. a) y=x^22x Yes b) y^2 = 3x4 No c) 5x+7y=10 Yes Are my answers correct?
asked by Hannah 
social studies
I have to think about the needs of fur traders, Aboriginal hunters, and farmers (for ex: land, water, and food). Then I have to tell how these and three other needs might come into conflict. So, the problem is that I cannot think of any other needs. is
asked by pkd 
Math
Paula saw 6 yellow birds and x blue birds while bird watching. James saw twice as many birds as Paula did. James saw 26 birds. Write an equation to find how many blue birds Paula saw while bird watching My answer is 2x(266) is this correct?
asked by A.T. 
English 2
Need help with this 19. Several passions are dramatized in "The Tragedy of Julius Caesar." Choose one of them such as justice, vengeance, ambition, love, or honor, and write a paragraph about how that passion is illustrated in the action of the play.
asked by mysterychicken 
3rd grade math
Ashton broke apart a number into 30+7 what number did he start with?
asked by joe 
math
Make up a data set of at least 12 numbers that have the following landmarks maximum18 mode 7 range13 median 12?
asked by ashten 
English
Which sentence is more common: 'I like seeing people happy' or 'I like to see people happy'?
asked by Peter 
MATH
WHAT FRACTION IS GREATER THAN OR EQUAL TO ONE?
asked by CAR 
calculus
Compute d/dx(4x+3/2x5)^1/2
asked by nesri 
social studies
what is the role o education in development of human resources
asked by Anonymous 
chem
Recycling of PET soft drink bottles involves heating with methanol and an acid catalyst to liberate ethylene glycol and dimethylterphthalate (methyl ester of pthalic acid). These can then be used as monomers to make new PET products. Write an equation for
asked by mark 
Math
When I'm rounded to the nearest ten, I'm 60. The digit in my ones' place is 2 more than the digit in my tens' place. Who am I?
asked by Caleb 
Math, ( Help please?)!
Tell whether each number is a real number, rational number, irrational, interger, or whole number, and then order then from least to greatest. ( Square root sign) 49, 8, ( square root sign) 4, and 3. Could someone explain to me how they found the answers
asked by Dawn 
earth/space science
Walking along the sidewalk one day, you find a rock and want to know what kind it is. You look at it and se that it is an off white color, is greasy feeling when you rub it, and your fingernail scratches it and breaks it up. What kind of mineral do you
asked by Ariel 
Algebra
What is the solution of 4x +1 > or equal to 7 I get these really confused on how to solve these. Thank you
asked by Randy 
social studies
What is not an objective of the constitution a. Protect the rights of the minority b. Establish the structure of government. c. protect individual worth and dignity of all people. d. Protect the rights of the majority This was to be corrected from class
asked by lindsey 
algebra)
how do i identify the property shown in a number sentence..ex. 5x(2x4)=(5x2)x4
asked by alex 
10th grade
Lack of iron in the photic zone of the open ocean restricts the size of plankton populations. Iron is what kind of factor for marine plankton?
asked by Katelyn 
english
I need the following sentence to be one sentence. Does this sentence flow okay and is punctuation correct? Is there a better way to word the following sentence? I am applying for the position of office manager of surgical services at Barnes Hospital that
asked by jean 
English
Directions: Write a concise response putting yourself in the role of "ethicist" and offering advice on how to handle the issue presented. The issue is "My high school requires that we dissect frogs. I am Buddhist, and we Buddhist have a reverence for all
asked by Kayla 
algebra2 (math)
The Cost of installing new kitchen cabinets is $150 for delivery for all the cabinets and an additional $45 to install each cabinet. a) Develop a model to give the total cost for a set of n cabinets. b) What is the total cost for a set of 18 cabinets? c)
asked by vid. 
Westen Civ.
Which governmental bodies are responsible for making laws in the United States? How does a written law protect American democracy?
asked by helga 
English
Slow Food vs. Fast Food Why is it better to buy local products for slow food? This is one of my bullets for an English essay.. I just need some guidance on how to set this up and main points.
asked by Doug 
Algebra
What is 9m+2m8=5(m2)
asked by Bianca 
history
Is early neo indians nomadic or sedentary?
asked by allen 
10th grade
Which planet has the gravitational force that is closest to Earth's gravitational force?
asked by Chase 
SOCIAL STUDIES
WHAT DOES REGION PHYSICAL MEANS?
asked by erick 
Math
4/13y – 7=6 8a – 3+1.2a = 9 5f + 1/8 = 3 (Find the value of f) p + 3/10 = 4 (Find the value of p)
asked by confused by adverbs and adjectives 
Math
I have a fraction x/1.2 If i multiply this fraction by x will I end up with the denominator on its own of 1.2x?
asked by Alison 
Physics
NEGATIVE DIRECTION 10 MILES FOR 3 HOURS, THEN POSITIVE DIRECTION 5 MILES OVER FOR 2 HOURS. WHAT IS HIS DISPLACEMENT? SPEED? VELOCITY?
asked by Ajay. 
math
9(5) keep 9, change  to + and 5 to 5 9+5=4
asked by AnOnYmOuS123 
algebra
Provide an example of at least five ordered pairs that do not model a function. The domain will be any five integers between 0 and 30. The range will be any five integers between 20 and 20. Why does your example not model a function?
asked by dee 
chemistry
Ok so i know how to get density but what do you do if the two numbers you are given are 12.993 cm^3 and10.49 g/cm^3.. i know its is mass divided by volume or grams divided by cm but what would i do in the situation?? thanks
asked by ammmyyy 
ipc
does a comound have a set or variable composition?
asked by Kaylee 
Math homework
Tell whether each number is a real number, rational number, irrational, interger, or whole number, and then order then from least to greatest. ( Square root sign) 49, 8, ( square root sign) 4, and 3. Could someone explain to me how they found the answers
asked by Dawn 
Social Studies
Whatever may have been the extent of psychological knowledge at the time of Plessey vs Ferguson, this finding of the Kansas court is amply supported by modern authority. Any language in Plessey vs Ferguson contrary to the finding is rejected. We concluded
asked by Arlena1998 
math
Diana takes 6 steps forward, then 2 steps back. If she repeats this pattern, how many steps will she be from where she started after 4 moves? After 5 moves?
asked by maria 
Chem/DNA
Convert 10mg/mL into micrograms/microliters
asked by Natalie 
trig
What is the graph of y = 3 sin (3x + 180)?
asked by stu 
social studies
does anyone know the 4 prehistoric indian groups that lived in indiana?
asked by dylan 
Maths
In a triangle the angles are (x + 9)°, 3x ° and (2x + 3)°. Find the smallest angle.
asked by Jannie 
physics
Two workers are loading crates onto a pick up truck. Worker 1 lifts his crate straight up from the ground to the truck. Worker 2 slides his crate up a ramp which has frictionless rollers. Which statement is true about the work being done on the crate?
asked by matt 
reimbursement methodologies/ Penn Foster
Your an HMO director. You would like to ensure that your care plan is meeting industry standards. Whats one way you can do this
asked by Anonymous 
management
Which one are you most likely to use should you be in the position where you are responsibility for the productivity for a group of people? What strengths come along with this theory? What are its weaknesses?
asked by Anonymous 
English
Help with Analogies and suggest me other ways to write them please. Thanks 1)Smart people keep quiet about what they know, but stupid people advertise their ignorance.Changed into:Good drivers are hindered to show their driving skills, while reckless
asked by Angelina 
HADS
Find the acceleration of the following reference frames i)when a reference frame fixed to the surface of the Earth at latitude 37 degree.ii)A reference frame with origin at the center of Earth with one axis always pointing toward the Sun. iii)A reference
asked by John 
math
What is the fraction in this fraction family? 33/27 44/36 66/54 Thanks.
asked by Tech Tiger 
algebra
The width of a retangle is fixed at 21cm. What linghts will make the perimeter grater than 74 cm?
asked by Lynn 
algebra
Solve by elimination 7r5s=41 5r+7s=61
asked by Smith 
Mathomewor
200 centimeters =_?_ meters? 300 centimeters = _?_ meters?
asked by Sean 
Mathomewor
200 centimeters =_?_ meters? 300 centimeters = _?_ meters?
asked by Sean 
PreAlgebra
4x
asked by Lucy 
Algebra
What is 9m+2m8=5(m2)
asked by Bianca 
AED 201
Are there certain curricular areas in which technology is more useful than in others? Explain your answer
asked by Jasmine 
math
2x(6)=  x  = + 12
asked by AnOnYmOuS123 
algebra
34 x (n x 2) = 680?
asked by kelius shannon 
positive psychology
Week 2: Online Presentation: “Tutorials & Guides1”  Due Date: Day 3 [post to the Main forum] This week you will chose a topic from the Online Presentation Guidelines and follow the directions there. Use the PowerPoint presentation as a guide. Be sure
asked by sonia 
Enligsh
My teacher told me how to revise my thesis in terms of parallelism. I am not sure what she means or how to do it. This is my thesis: "School uniforms should be required in all public schools because not only do they cut down on the teasing and bullying but
asked by Kayla 
English
Here are some more alternatives I'd like you to check. Thank you very much! 1) He was first mentioned to Marlow by the accountant. Can you also say: He was mentioned by the accountant for the first time? 2)His clothes were highly coloured. He was dressed
asked by Franco 
Art History
list the major category in which art expression can be clasify?
asked by Bernadette 
5th grade
91 .12
asked by CHANEL 
Algebra
I4x4I=8x+16 (The 2 "I" are absolute signs)
asked by John 
8th grade
solve 3m=8m
asked by nicole 
english
Explain why it is necessary to have the following literary elements in a piece of literature.
asked by terrance 
English
The Great Coral Reef almost circles New Zealand it has more marine life than anywhere else in the world
asked by Dawn 
math
how many vertacies does a cube have??
asked by may 
Math
How do you do this? I4x4I=8x+16 (The 2 "I" are absolute signs)
asked by John 
math
waterline in my back yard is represented by the equation Y=1/4x +8 What is the slope of the equation what is the Y intercept of the equation?
asked by rick 
english
i do not a understand what a exemplum is. Could someone please help me and give an example to also help me understand. thanks
asked by Anonymous 
DIVIDING BINOMIALS
find the quotient: (49y^4+42y^3)/7y
asked by jackie 
Social Studies
How did the weaknesses of Articles of Confederation affect the government in conducting the daytoday business of a new country? Could this government succeed?
asked by Aashi 
math
What's the domain of √((x2)/(x^2+x6)) (2,infinity] ?
asked by sh 
math
5(t+3)=1+2(t+3) I don't know how to do it. I need help going over the steps
asked by jonathan 
math
how do you find the function of the domaine
asked by tiffany 
Math
How do I evaluate the expression for.. The square root of 4? ( I don't know how to do the sign on the computer)
asked by Dawn 
MATH
7(4) keep change change keep the 7 change the  to + and change the 4 to +4 so the question is going to7 + 4= 3
asked by AnOnYmOuS123 
Math
7/4 = 3/a (Find the value of a ) T5/4 = 3/2 (Find the value of T) x/9 = 0.24/3 (Find the value of x )
asked by confused by adverbs and adjectives 
algebra
3/x=5/102
asked by Anonymous 
high level chemistry
can anyone tell me about the molecular orbital energy order in energy level diagrams????its molecular n not atomic..... plz tell me its very urgent!!!!
asked by vishesh 
Calculus: Application of Integration
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle and label ts height and width. Then find the area of the region. y=x^2 y^2=x
asked by Anonymous 
anatomy and phisiology 1
who has the answer for the test of anatomy and phisiology 1.
asked by yanet 
math
(16+ )+(147)=18+22
asked by Jackie 
math
(16+ )+(147)=18+22
asked by Jackie 
math
(16+____) +(147)=18+22
asked by Jackie 
Science
A current of 7.50 amperes flows through an air conditioner. If the volyage in the wall outlet is 110 volts, what is the resistance in the air conditioner?
asked by Amber 
Medical
if john date is responsible for accounting services for weston hospital, he's the hospital's chief what?
asked by Anonymous 
social studies
what does bias mean?
asked by jessica 
Mathomewor
200 centimeters =_?_ meters? 300 centimeters = _?_ meters?
asked by Sean 
MATH!! NEED HELP! If I don't pass this, Ill fail!!
20 = 7 + x/2 need to show work! :( I don't get it! Help!?
asked by Shay 
Us History
hi ms.sue i have a question that i need help .thanks for all the help that you had given me =) i really appreciate it. so i need help in this ,i don't undesrtand it . what would be the probable result of the national government sending military force
asked by Natalie 
algebra
3/x+5/102
asked by Anonymous 
math question.
are all whole numbers real numbers?
asked by Dawn 
algebra
how to graph y=x+3
asked by mike 
algebra
is this proportion true or false 3/4=6/12?
asked by Anonymous 
math
4+(6)= keep 4, change + to , den turn 6 to +6 4(+6)= 2
asked by AnOnYmOuS123