Questions Asked on
October 25, 2012

7th grade math Ms.Sue please check my answers
1. Mac’s farm has a total of 18 horses and 27 cows. What is the ratio of horses to cows in simplest form? (1 point) 6 over 9 18 over 27 2 over 3 three over two 2. A class has 27 students. Fifteen are boys and the rest are girls. What is the ratio of
asked by Delilah 
physics
A 4.170 kg block of wood rests on a steel desk. The coefficient of static friction between the block and the desk is μs = 0.505 and the coefficient of kinetic friction is μk = 0.255. At time t = 0, a force F = 12.7 N is applied horizontally to the block.
asked by ashley 
Gas Law Chemistry
I need help on these two questions: If a certain gas occupies a volume of 16L when the applied pressure is 8.0atm , find the pressure when the gas occupies a volume of 4.0L . A certain gas is present in a 12.0L cylinder at 4.0atm pressure. If the pressure
asked by Amy 
Halp me or i fall
Write the number that makes the statement true. 1. 205.5 m = _____ mm (1 point) 205,500 0.2055 20.55 20,550 2. 199.2 km = _____ m (1 point) 199,200 19.92 19,920 0.1992 Use benchmarks to estimate the sum. 3. + (1 point) 2 1 0 Estimate the difference. 4. 6
asked by Mj still livin fake hes death 
physics
The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W = 55600 N. The lift force generated by the rotating blade makes an angle of 21.0° with respect to the vertical. (a) What is the
asked by Anonymous 
math
Look at the table of 9s facts. Can you think of another number pattern in the multiples of 9? Explain
asked by Anonymous 
math
determine between which consecutive integers the real zeros of each function are located. f(x)=3x^3 – 10x^2 + 22x – 4 (I got 0,1) f(x) = x^3 – 12x^2 + 17x – 9 (NO idea) f(x) = x^3 – 9 (I got 8,9) Thanks for the help, I really appreciate it. I
asked by Anon 
physics
Only two forces act on an object (mass = 4.00 kg), as in the drawing. Find the magnitude and direction (relative to the x axis) of the acceleration of the object. Ftotal=Sqrt(60^2+40^2)=72.11(N) Angle=tan1(60/40)= 56.3° (How did you get 56.3°) a=
asked by Anonymous 
algebra
A biologist took a count of the number of migrating waterfowl at a particular lake, and recounted the lakes population of waterfowl on each of the next six weeks. Find the function that models the data as a function of x, the number of weekx. Use the model
asked by LEE 
college chemistry
If KHP sample #1 requires 27.30 mL of NaOH solution to reach an endpoint, what volume should be required for samples #2 and #3?
asked by Kristen 
nutrition
Choose three nutritional labels off of food packaging. Explain the ingredients and how to read each label in terms of calories, protein, carbohydrates, fats, and percentage of daily recommended dietary value. Respond in a short essay format of 200 words of
asked by Nichole 
Physics
A metallic surface emits electrons when it is irradiated with a yellow light source of power 25 Watts. What happens to the emission of the electrons if one yellow light source is replaced by two violet light sources of same power? The number of emission of
asked by Meep 
Chemistry Help
The specific heat of zinc is 0.386 J/g degrees Celsius. How many joules would be released when 454 grams of Zinc at 96.0 degrees Celsius were cooled to 28.0 degrees Celsius.
asked by Sam 
Chemistry
Running at a rate of 6 mi/h uses 704 Calories in an hour. Convert this value to (a) calories; (b) kilocalories; (c) joules; (d) kilojoules.
asked by Kelly 
algebra
The table shows a meteorologists predicted temperatiures for an April day in Washington D.C. Use quadratic regression to find a quadratic model for this data. Use the 24 hour clock to represent times after noon). time predicted temperature(F) 8a.m. 50.68
asked by Jay 
Chemistry
Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is 2C4H10(g) + 13O2(g)> 8CO2(g)+ 10H2O(l) At 1.00 atm and 23 degrees Celcius, what is the volume of carbon
asked by Amy 
math  still don't get it
Karl piled twelve 1" cubes in three layers on top of a square made with four 1" cubes. What shape is the structure that Karl made? help me with the answer
asked by bo 5th grader 
physics
A 130 N block rests on a table. The suspended mass has a weight of 63 N. 130 N 63 N µs a) What is the magnitude of the minimum force of static friction required to hold both blocks at rest? Answer in units of N
asked by Anonymous 
Physics
The pulley system shown in the figure is used to lift a 37 kg crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume that the masses of the chains, pulleys, and ropes are
asked by Andrea 
Physics URGENT! PLEASE
An object in equilibrium has three forces exerted on it. A 36 N force acts at 90° from the x axis and a 42 N force acts at 60°. What are the magnitude and direction of the third force?
asked by Anna 
Algebra 2
3. Identify the vertex and the axis of symmetry of the graph of the function y = 3(x + 2)2 – 3. (1 point) A vertex: (2, –3); axis of symmetry: x = 2 B vertex: (–2, –3); axis of symmetry: x = –2 C vertex: (2, 3); axis of symmetry: x = 2 D
asked by Robert 
Problem solving:for 3rd grade
Write a realworld problem that you can solve by adding or subtracting.Then give your problem to a classmate to solve.
asked by Jon 
Physics
When the pendulum bob reaches the mean position, the net force acting on it is zero. Why then does it swing past the mean position?
asked by Noxin 
Physics
A river flows due east at 1.42 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 11.9 m/s due north relative to the water. If the river is 389 m wide, how far downstream is the boat when it reaches
asked by Mac 
math
a farmer has cows and chickens. he has a total of 20 heads and 64 legs. How much of each animal does he have?
asked by nina 
physics
A person holds a 1.56 baseball in his hand, a distance of 34.0 cm from the elbow joint, as shown in the figure(Figure 1) . The biceps, attached at a distance of 2.75 cm from the elbow, exerts an upward force on the forearm. Consider the forearm and hand to
asked by Aaron 
Physics
Calculate the force of gravity between a newborn baby of mass 4 kg and the obstetrician of mass 75 kg, who is 0.5 m from the baby. N Which exerts more gravitational force on the baby, Mars or the obstetrician, given that Mars has a mass of 6.4 1023 kg and
asked by Sharvani 
English
Which of the following is an example of indirect characterization? A.“brave Macbeth” B.“worthy gentleman” C.“Bellona’s bridegroom” I'm guessing C, but i'm really not sure. The help is so appreciated.
asked by Anon 
physics
A 170 N block rests on a table.The suspended mass has a weight of 52N. What is the magnitude of the minimum force of static friction required to hold both blocks at rest?
asked by Briana 
Algebra 1
Select the points that lie on the function h(x) = 3x^2.
asked by Monica 
High School Physics
The player kicks a football with an initial speed of v0 = 98 ft/s. Determine the two possible values for the angle of the kick, theta. The distance of the football field is 126 ft. Also determine the corresponding time at each of these two angles.
asked by Anonymous 
College Chemistry
The specific Heat of gold is 0.128 J/g degrees Celsius. How much heat would be needed to warm 250.0g of gold from 25.0 degrees Celsius to 100.0 degrees Celsius
asked by Chris 
College Chemistry
Calculate the number of Joules released when 75.0 g of water are cooled from 100.0 degrees Celsius to 27.5 degrees Celsius
asked by Josh 
Physics
A rocket ascends from rest in a uniform gravitational field by ejecting exhaust with constant speed u. Assume that the rate at which mass is expelled is given by dm/dt=mk, where m is the instantaneous mass of the rocket and k is a cosntant, and that the
asked by Jake 
Physics
What happens to the atomic number of the daughter nucleus if it is formed after the emission of the beta particle? The atomic number remains the same. The atomic number increases by two. The atomic number increases by one. The atomic number decreases by
asked by tyewywtw 
General Chemistry
Hospital Xray generators emit X rays with wavelength of about 15.0 nanometers (nm), where 1 nm=109m. What is the energy of a photon in an X ray?
asked by Maria 
math calc 2
a cattle trough has a trapezoidal cross section with a height of 1 m and horizontal sides of width 1/2 m and 1 m assume the length of the trough is 10 m. A. how much work is required to pump out the water in the trough? B. if the length is doubled does the
asked by arnulfo 
Chemistry
A 50.0 mL sample containing Cd2 and Mn2 was treated with 49.1 mL of 0.0700 M EDTA. Titration of the excess unreacted EDTA required 17.5 mL of 0.0300 M Ca2 . The Cd2 was displaced from EDTA by the addition of an excess of CN–. Titration of the newly freed
asked by Chris 
science
I have made a thermometer which measures temperature by the compressing and expanding of gas in a piston. I have measured that at 100 degrees C the volume of the piston is 20 L. What is the temperature outside if the piston has a volume of 15 L? What would
asked by Bob 
Physics!
Two ropes pull on a ring. One exerts a 57 N force at 30.0°, the other a 57 N force at 60.0° (a) What is the net force on the ring? Magnitude __?__N Direction __?__° (b) What are the magnitude and direction of the force that would cause the ring to be in
asked by Anna 
7th grade math help please the REAL ms.sue
1. Mac’s farm has a total of 18 horses and 27 cows. What is the ratio of horses to cows in simplest form? (1 point) 6 over 9 18 over 27 2 over 3 three over two 2. A class has 27 students. Fifteen are boys and the rest are girls. What is the ratio of
asked by Delilah 
Physics
A car traveling at 20 m/s applies the brakes. The coefficients of static and kinetic friction between the tires and the road are 0.80 and 0.50 respectively. (A) Determine the stopping distance if the car is able to stop as quickly as possible without
asked by Brittney 
algebra
A tiger can eat food that weighs up to 15% of its body weight. If a tiger can eat 75 pounds of food, how much does a iger weigh? Write and solve a percent proportion>
asked by Stephanie 
Algebra 1
A clerk was asked to change a $10 bill. She returned 9 more dimes than nickels and twentyone more quarters than dimes. How many coins of each did she return? I don't know why but this is stumping me. Help plz.!
asked by Monica 
Math
Daphne replaced light bulbs in her mothers store.She had 3/4 of a box of light bulbs. She used 1/3 of the bulbs. a. What fraction of the box of light bulbs was left? b. How many light bulbs are in a full box? Explain. Thanks to everyone who helps answer
asked by Cherie 
Physics
A jet plane is flying with a constant speed along a straight line, at an angle of 26.5° above the horizontal, as Figure 4.30a indicates. The plane has weight whose magnitude is 86500 N, and its engines provide a forward thrust of 103000 N. In addition,
asked by Perry 
Physics
Which of the following statements is not true if an incident ray of light makes an angle of 30o with the mirror surface? angle of incidence = 30o angle of reflection = 60o angle of incidence = 60o angle between incident ray and reflected ray = 120o
asked by Bad at Physics 
english
Literary Analysis: Character and Characterization Read the selection. Then, answer the questions that follow. People who don’t know Harry tend to underestimate him. They cast a skeptical eye on his typical outfit: ragged jeans and shirts that bear
asked by Aya 
Physics
A bullet with a mass m=12.5 g and speed v=85.4 m/s is fired into a wooden block with M=113 g which is initially at rest on a horizontal surface. The bullet is embedded into the block. The blockbullet combination slides across the surface for a distance d
asked by Devin 
Physics
A broad jumper begins his jump at an angle of 22 f degrees from the horizontal at the middle of the jump he reaches a height of 70m ANSWER: 9.16m/s Relevant Formulas: dv=1/2at^2...dh=vht...t=vv/a..
asked by Loratadine 
Physics
You are pulling your little sister on her sled across an icy (frictionless) surface. When you exert a constant horizontal force of 114 N, the sled has an acceleration of 2.3 m/s2 If the sled has a mass of 7.6 kg, what is the mass of your little sister? I
asked by Help Please 
math
Using the numbers 1 through 9 with no repeats, find a 9 number such that: the first digit is divisible by 1, the first two digits are divisible by 2, the first 3 digits are divisible by 3, and so on until we get to a 9 digit number divisible by 9. You
asked by maddi 5 
physics
If you walk 3.0 km on a straight road and then find that you are 1.5 km east of your starting point and some unknown distance north of your starting point, in which of these directions did you walk?
asked by anon 
math
Jose left the airport and traveled toward the mountains. Kayla left 2.1 hours later traveling 35mph faster in an effort to catch up to him. After 1.2 hours Kayla finally caught up. Find Jose's average speed/
asked by Joe Joe 
Math
Determine whether a regular decagon has reflection symmetry and/or rotational symmetry. If it has reflection symmetry, state the number of axes of symmetry. If it has rotation symmetry, state the angle of rotation. Explain how you determined your answers
asked by Mae 
Physics
A photocell shows photoelectric effect when green light shines on it. Which of the following is correct if a green light is replaced by a blue light? Electron emission would get stopped. Electrons are emitted with more velocity. Electrons are emitted with
asked by Tyler 
Physics HELP!
An airplane flies due north at 240 km/h with respect to the air. There is a wind blowing at 75 km/h to the northeast with respect to the ground. What are the plane's speed and direction with respect to the ground? __?__km/h __?__° east of north
asked by Anna 
elementary
Explain it sandy said she could use addition to answer question 1 how could this be done?
asked by josh 
Chemistry(Please check)
Determine if the equation is SN1, SN2,E2 or E1. CH3CH2O + CH3CH2BR = CH3CH2OCH2CH3 + BR I think that this is SN2. Would you agree?
asked by Hannah 
Discrete Mathematics
Suppose a0, a1, a2 ,... is a sequence defined recursively as follows: a1 = 1, a2 = 2, a3 = 3 and ak = ak1 + ak2 + ak3 for all integers k > 3. Use strong induction to show that an < 2n for all integers n ≥ 1.
asked by Vevea Tepou 
physics
A 60kg wood carving of a gazelle slides under the action of the force shown. What is the normal force? assumin the gazelle starts from rest, how long will it take to move 3 meters?
asked by antonio 
Physics
Which of the following is an example of diffuse reflection? light reflected from the surface of a dry asphalt roadway light reflected from the surface of a calm lake light reflected from the surface of glossy paper light reflected from the surface of a
asked by Anonymous 
Physics PLEASE HELP
Assume you are agile enough to run across a horizontal surface at 11.60 m/s on an airless spherical asteroid of uniform density 1.0x103 kg/m3, independently of the value of the gravitational field. To launch yourself into orbit by running, what would be
asked by Anonymous 
math
Chelsea left the White House and traveled toward the capital at an average speed of 34 kn/h. Jasmine left at the same time and traveled in the opposite direction with an average speed of 65km/h. Find the number of hours Jasmine needs to travel before they
asked by Joe 
Physics
A pendulum consists of a 2.6 kg stone swinging on a 4.5 m string of negligible mass. The stone has a speed of 7.9 m/s when it passes its lowest point. (a) What is the speed when the string is at 53 ¢ª to the vertical? (b) What is the greatest angle with
asked by Cody 
Physics
A speed skater goes around a turn that has a radius of 31 m. The skater has a speed of 13 m/s and experiences a centripetal force of 460 N. What is the mass of the skater?
asked by Orla 
Physics
A conductor of length 2m carrying a 1.5A current experiences a force of 2.2 N. What is the magnitude of the magnetic field that acts perpendicular to the flow of current in the conductor? 0.73 Tesla 6.60 Tesla 0.34 Tesla 0.61 Tesla
asked by Anonymous 
Chemistry
which one of the following cannot disproportionate cl, clo3, cl2, cu+, fe2+
asked by Kerishena 
Enlgish, possessive form of singular and plural no
possessive form of family, brother, suitcase, child, government, pen, train, tree, woman, refugg, families, brothers, suitcases, children, governments, pens, trains, trees, women,refugees
asked by Robin 
Physics
What is the magnification of a 4 cm tall object placed 40 cm from a concave mirror having a focal length of 10 cm? 0.33 0.33 1.33 1.33 I'm thinking B.
asked by Fleur 
Physics
A 640kg racing car completes one lap in 14.3 s around a circular track with a radius of 55.0 m. The car moves at constant speed.(a) What is the acceleration of the car?(b) What force must the track exert on the tires to produce this acceleration?
asked by Jamal 
Physics
You fly 32.0 km in a straight line in still air in the direction 35.0 degree south of west. Find the distance you would have to fly straight south and then straight west to arrive at the same point.
asked by Anonymous 
physics
a skateboarder starting from rest accelerates down a ramp at 2m/s squared for 3sec. what is the final speed of the skateboarder?
asked by danielle 
Physics
The drawing shows a circus clown who weighs 710 N. The coefficient of static friction between the clown's feet and the ground is 0.49. He pulls vertically downward on a rope that passes around three pulleys and is tied around his feet. What is the minimum
asked by D 
Physics
An airplane flies due north at 260 km/h with respect to the air. There is a wind blowing at 60 km/h to the northeast with respect to the ground. What are the plane's speed and direction with respect to the ground?
asked by Maddie 
physics
A balloonist drops an apple weighing 1.5 N over the side of the balloon's gondola. As it falls and increases speed, the drag force from the air upward on it increases. When the upward force is 0.7 N, what is the direction and magnitude of the net force on
asked by anon 
physics
A particle has an initial horizontal velocity of 2.9 m/s and an initial upward velocity of 4.5 m/s. It is then given a horizontal accelera tion of 1.2 m/s2 and a downward acceleration of 1.2 m/s2. What is its speed after 4.9 s? Answer in units of m/s
asked by Sonia 
Physics
The third harmonic of a guitar string has a frequency of 170 Hz. What is the length of the guitar string if the speed of the waves on the string is 125 m/s? 1.103 m 2.206 m 0.368 m 2.040 m
asked by Meep 
physics
Three blocks are suspended at rest by the system of strings and frictionless pulleys shown in the figure below, where W = 29.0 . What are the weights w1 and w2?
asked by anthony 
physics
A bomber flies horizontally with a speed of 225 m/s relative to the ground. The altitude of the bomber is 3010 m and the terrain is level. Neglect the effects of air resistance. The acceleration of gravity is 9.8 m/s2 . a) How far from the point vertically
asked by Sonia 
electronic basic
you observe a small plaque on an electrical appliance that reads, in part, "115 volts AC 60 Hz." this means that the appliance
asked by pepe 
Math
Find the area under the standard normal curve: I. to the right of z = 2.32 II. to the left of z = 2.32 Can someone please help me with this one question? Thanl you in advance.
asked by Jessup 
phy
Three blocks are suspended at rest by the system of strings and frictionless pulleys shown in the figure below, where W = 29.0 N, and è = 26.6°. What are the weights w1 and w2?
asked by anthony 
7th grade math help Ms.Sue ratios please
Write each ratio in simplest form. 1. 28 seconds / 2 minutes 2. 22 in. / 3 feet 3. 36 cm. / 132 cm. Can you help me i have NO IDEA how to solve these thanks
asked by Delilah 
Chemistry
A 0.5370 g sample of a pure soluble chloride compound is dissolved in water, and all of the chloride ion is precipitated as AgCl by the addition of an excess of silver nitrate. The mass of the resulting AgCl is found to be 1.2523 g. What is the mass
asked by Orla 
math homework
The whole number are written across a piece of paper in order. There is room for 100 digits on each line and there are no spaces between each digit. What are the last 5 digits on the second line? 0123456789101112.......
asked by Bob 
physics
A 0.5 kg block is sliding along a table top with an initial velocity of 0.2 m/s. It slides to rest in a distance of 70 cm. Find the frictional force that is slowing its motion.
asked by kimi 
p.e.
a scull is to rowing as a  is to yachting.
asked by marissa 
Chemistry
How many ethane molecules are there in 0.0300 mole of methane
asked by Bryce 
S.S
5. What was the role of the Native Americans during the Revolutionary War? a. Native Americans did not fight in the Revolutionary War. b. More Native Americans fought with the British than with the Americans during the Revolutionary War. c. More Native
asked by Jman 
History
Which West African kingdom was the first to benefit from the gold and salt trade? Ghana Songhai Mali Morocco My answer is Ghana.
asked by S 
Stela
CCl4 ClO4− ClF4− SiCl4 SO42− Which molecule or ion does not have a tetrahedral molecular geometry?
asked by CHEM 
Math
Kim packed 6 boxes with identical supplies. It was the greatest number she could pack and use all the supplies. Which of these is her supply list
asked by Shion 
Science
A mechanic pushes a 2.20 103kg car from rest to a speed of v, doing 4,550 J of work in the process. During this time, the car moves 24.0 m. Neglecting friction between car and road, find each of the following.
asked by Mags 
Physics
A car of mass 1100 kg starts from rest at sea level and climbs a hill of altitude 50 m. At the top of the hill the car has a speed of 25 m/s. From the top of the hill the driver turns off the engine and coasts down to an altitude of 15 m. Assume the
asked by Sara 
Physics
An airplane flies due north at 260 km/h with respect to the air. There is a wind blowing at 60 km/h to the northeast with respect to the ground. What are the plane's speed and direction with respect to the ground?
asked by Maddie 
writing
Could you please proofread this along with punctuation. It's an essay and it will be doubled spaced when I submit it. Thank you In approximately 200–350 words, using compare/contrast strategies, discuss the benefits and/or advantages of shopping online,
asked by Ann 
Chemistry
The solubility of CaSO4 is 0.209 g/100 mL of water at 30 degrees celsius. if 0.500 g CaSO4 is stirred overnight at 30 Degrees Celsius with 100.0 mL of water, a. How many grams of CaSO4 remain undissolved? b. Calculate the molarity of CaSO44 in solution
asked by Anne 
Calculus (Help)
The graph of y=cos x * ln cos^2x has seven horizontal tangent lines on the interval [0,2pi]. Find the xcoordinate of all points at which these tangent lines occur. What the derivative of the function?
asked by Lerinda 
chemisty
a 10.00ml diluted chloride sample required 44.89 ml of 0.01982 m abno3 to reach the fajans end point. how many moles of cl ion were present in the sample
asked by lisa 
Physics
Two forces are exerted on an object. A 32 N force acts at 220° and a 53 N force acts at 315°. What are the magnitude and direction of the equilibrant? ____ N ____ °
asked by Mrs. Kim 
Social Studoes 8R  help!!!!! (please)
Why do you think some people called Carnegie called a Robber Baron? well... according to the wiki it says .... "....He earned most of his fortune in the steel industry. In the 1870s, he founded the Carnegie Steel Company, a step which cemented his name as
asked by Laruen 
physics
Suppose you waik 18.0m straight west and then 25.o m straight north. How far are you from your starting point and what is the compass direction of a line connecting your starting point to yourfinal position?
asked by John 
elementary
Explain it sandy said she could use addition to answer question 1 how could this be done?
asked by swetha 
Physics!!! HELP
An object in equilibrium has three forces exerted on it. A 36 N force acts at 90° from the x axis and a 42 N force acts at 60°. What are the magnitude and direction of the third force? __?__N __?__° (counterclockwise from the +x direction)
asked by Anna 
Calculus
Air is being pumped into a spherical balloon so that its volume increases at a rate of 80 cm^3 per second. How fast is the surface area of the balloon increasing when its radius is 9cm? * ball of radius r has volume V=(4/3)pi r^3 and surface area S=4pir^2
asked by Susanna 
Physics of Sound
For a speaker whose sound power output is 140 dB, the distance from the speaker at which the sound level will be reduced to 85 dB is ?
asked by Kristen 
Physics PLEASE HELP
A toy race car starts from rest on a circular track of radius 4.30 m. The cars speed increases at the constant rate of 8.80 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, determine (a) the speed of the
asked by Anonymous 
math
Assume that the average annual salary for a worker in the United States is $30,500 and that the annual salaries for Americans are normally distributed with a standard deviation equal to $6,250. Find the following: (A) What percentage of Americans earn
asked by Jen 
Physics
A proton of mass mP and a positively charged nucleus of mass 9mP are widely separated and traveling towards each other at the same speed of 1500 m/s along the same line. Because they are both positively charged, they repel each other and undergo a soft
asked by AH 
Physics
What would the weight of an object that is 4N on the earth be on the moon (acceleration due to gravity on the moon is 1.62m/s2?
asked by Jeff 
Physics
What is the image distance of a 4 cm tall object placed 40 cm from a concave mirror having a focal length of 10 cm? 13.3 cm 13.3 cm 40.0 cm 40.0 cm
asked by Huh? 
elementary
number sense fabio said that there are 3 times as many people on a basketball team as on a tennis team.is he correct?why or why not. tennis 2 players basketball 5 players
asked by josh 
Discrete Mathematics
Prove that if n is an odd positive integer, then 1 ≡ n(power of 2) (mod 4).
asked by Vevea Tepou 
Chemistry
assuming that each molecule contains one acidic hydrogenthat is, the formula is HCnHmOp? assumin gthat each molecule contains 2 acidic hydrogensthat is, the formula is H2CnHmOp??
asked by Anne 
Physics
In the configuration shown (10m incline for m1 and 8m vertical length for m2 with a spring under it, both masses are linked by a rope and a pulley at the top), the 52.0 N/m spring is unstretched, and the system is released from rest. The mass of the block
asked by Alphonse 
science
Please give me about 2 websites where i can find out interesting facts about Venus. 2 websites where i can find out if any robots or satellites landed on Venus.2 websites were I can find the average temperature of Venus. Lastly 2 websites where I can find
asked by sci 
Physics
Part a of the drawing shows a bucket of water suspended from the pulley of a well; the tension in the rope is 107.5 N. Part b shows the same bucket of water being pulled up from the well at a constant velocity. What is the tension in the rope in part b?
asked by Perry 
Physics
If the moon were twice as massive, would the attractive force of Earth on the moon be twice as large? Yes No What about the attractive force of the moon on Earth? Yes No
asked by Sharvani 
chemistry
What is the partial pressure of CO2(torr) in exhaled breathe at 37.0 degree C if the partial pressure of Oxygen is 116 torrr and that of nitrogen is 659 torr. Assume the atmospheric pressure is 1.00 atm
asked by Carina 78 
Physics
A satellite has a mass of 6179 kg and is in a circular orbit 4.83 × 105 m above the surface of a planet. The period of the orbit is 2.4 hours. The radius of the planet is 4.03 × 106 m. What would be the true weight of the satellite if it were at rest on
asked by Orla 
Finance
A company has identified the following investments as looking promising. Each requires an initial investment of $1.2 million. Which is the best investment?Question 4 options: A) a perpetuity that generates a cash flow at the end of year 1 of $100,000, has
asked by Taylor 
english
Literary Analysis: Character and Characterization Read the selection. Then, answer the questions that follow.People who don’t know Harry tend to underestimate him. They cast a skeptical eye on his typical outfit: ragged jeans and shirts that bear
asked by Aya 
physics
An 849 g mass is attached to a pulley and a 9 N weight is attached to a thin massless cord, as shown below. .5 849 g 9 N T What is the tension T? The pulley is massless and frictionless. The acceleration of gravity is 9.8 m/s 2 . Answer in units of N
asked by Anonymous 
Calculus (Urgent Help)
The graph of y=cos x * ln cos^2x has seven horizontal tangent lines on the interval [0,2pi]. Find the xcoordinate of all points at which these tangent lines occur.
asked by Ren 
chemistry
Hassium (III)oxalate contains 2.25 mol of Carbon atoms. What is the number of moles of oxygen atoms in the sample?
asked by Carina 
Chemistry
How many milliliters of 0.225 M NH4C2H3O2 are needed to make 750.0 mL of 0.1667 M NH4C2H3O2?
asked by Kimber 
Chemistry
By titration 24.68mL of 0.1017 M NaOH is required to neutralize 0.1482 g of an unknown organic acid. what is the formula mass of the acid?
asked by Anne 
Chemistry
In an experiment to measure the solubility of Ba(OH)2 x 8H2O in water, an excess of solid Ba(OH)2 x 8H2O was stirred with water overnight. the saturated solution was allowed to stand until all the undissolved solid had settled. a 10.00mL sample of the
asked by Anne 
science VERY URGENT
Once again please give me about 2 websites where i can find out interesting facts about Venus. 2 websites where i can find out if any robots or satellites landed on Venus.2 websites were I can find the average temperature of Venus. Lastly 2 websites where
asked by sci 
Physics
Hockey puck A initially travels at v(initial) = 6.2 m/s in the horizontal direction (East) on a smooth horizontal ice before striking hockey puck B which is initially at rest, offcenter. After the collision, A is deflected at Î¸ = 23 degrees 'above' its
asked by AH 
Math
If 7x + 5 = 2, find the value of 8x.
asked by Tom 
North America Climate
Which of the following does not influence the distribution of climates in North America? a. tropical latitude location b. ocean currents c. high mountain ranges C.??
asked by rawr... im a dinosaur.... rawr 
college algebra
y=3x/x^2 + 81 for the given equation, list the intercepts and test for symmetry.
asked by ladybug 
Elementary
number sense fabio said that there are 3 times as many people on a basketball team as on a tennis team.is he correct?why or why not. tennis 2 players basketball 5 players
asked by swetha 
math
what is the slopeintercept form of 16xy=8
asked by peyton 
Health
People with bipolar disorder are at a higher risk for ________. A. Heart disease B. Diabetes C. Migraine headaches D. All of the above
asked by katelynn 
physics
A 74.0 kg box slides down a 28.0 degree ramps with an acceleration of gravity of 3.10 m/s^2. Find μk between the box and the ramp. The acceleration of gravity is 9.81 m/s^2
asked by Briana 
calculus
a curve is such that dy/dx = x^2  1 Show that no tagent to this curve is parallel to the line with equation 3x + 2y  4 = 0
asked by yuen 
Math
If 7x + 5 = 2, find the value of 8x.
asked by Tom 
Human Behavior
What does spirituality mean in middle adulthood but it is not related to religion?
asked by R.T. 
dress making design
I need help examination mumber 04201800
asked by siri 
Physics
In the configuration shown (10m incline for m1 and 8m vertical length for m2 with a spring under it, both masses are linked by a rope and a pulley at the top), the 52.0 N/m spring is unstretched, and the system is released from rest. The mass of the block
asked by Alphonse 
North American Climate
a. Southwestern United States b. Northeastern Canada c. Southeastern United State c??
asked by rawr... im a dinosaur.... rawr 
physics
what speed must you toss a ball straight up so it takes 2s to return to you
asked by manuel 
physics
Two steam locomotives are approaching each other, each at 30 mi/hr, heading for a sure headon collision. A rhinoceros beetle, who flies with a constant speed of 35 mi/hr, leaves the front of the first locomotive when the engines are just 2.000 miles
asked by Anonymous 
math
If one nickel is worth five cents, how much is half of one half of a nickel worth?
asked by gary 
social
I am having a difficult time understanding spiritually during middle adulthood. The question is what is happening spiritually during middle adulthood? The are not talking about religion.
asked by R.T. 
Math
Graph the linear equation 3y = 6x +3. Then rewrite the equation using the form y = ax + b. Thanking you
asked by shasas 
science
How much volume would a 4x4x4 cm cube occupy
asked by juan 
Health
When a person has episodes of hypomania that shift back and forth with mild depression for at least two years, he or she has what form of bipolar disorder? A. Bipolar I Disorder B. Bipolar II Disorder C. Cyclothymic Disorder D. BPNOS
asked by katelynn 
mathematics
calculate the following fractions 1/3+ 2/3+ 5/3 what is the answer AND show how you get the answer
asked by Dana 
ELA reading
Do you know any wbsites where i can read the whole book Magic tree house Dragon of the Red Dawn? Please I need to read that book very badly. :(
asked by sci 
perimeters
What are 5 different rectangle drawings with a perimeter of 20 units
asked by Renee 
Math
Prove the identities 1. cos3Ɵ + cos Ɵ = 4cos^Ɵ  2 cos Ɵ 2. sin (A+B)sin (AB)=cos2B + sin^2 A1
asked by Anonymous 
math
The length of a rectangle is 12 inches and the width is 12 inches. What rectangle has the same area?
asked by Anonymous 
Math
The class collected 9 5/7 pounds of glass bottles and 6 1/2 pounds of aluminum cans. How many pounds of glass and aluminum did the class collect in all? 16 3/14?
asked by Jerald 
Visual Basic
Help with code Enter 10000 for total sales Base pay cont $900. Commission 6% Gross pay base pay  commission Deduction 18% Net pay gross pay deduction Need serious help
asked by Denise 
Math
How much larger is the 8 in 657,689,004 than the 8 in 789,456,234?
asked by Jennifer 
Chemistry
Convert 29.8 atm into torr I did this 29.8(1/760) and got 22648 but its not going online as correct
asked by Jena 
College Chemistry
What volume of the solution in 5a would be necessary to react completely with 23.00mL of 0.549M NH3 according to the equation: NiSO4+6NH3 > [Ni(NH3)6]SO4 The molarity of ta is 1.667 x 10^4M
asked by Bill 
Accounting
Inventory as of Nov. 30th, 2010, consists of 20 bikes costing $550 each. Balance Sheet: Nov. 30th 2010. Cash9150 Debit Accounts Receivable12300 Debit Inventory11000 Debit Supplies900 Debit Office Equipment18000 Debit Accumulated Depreciation, Office
asked by Kevin 
Health
Below are descriptions about the programs that are designed to help prevent suicide. Which statement is true?
asked by katelynn 
Chemistry
Describe how to make 750.0 mL of 0.1667 M NH4C2H3O2 from 0.225 M NH4C2H3O2?
asked by Kimber 
English
Write the complete verb in each sentence. Label it active or passive. 1. It was propelled by six paddles on each side. Each side was propelled by six paddles. Passive?
asked by Emma 
Chemistry
to how many milliliters must 29.6 mL of 4.25 M HCL be diluted to make 0.654 M HCL?
asked by Kimber 
American history
I need to answer questions about the woman in the crimson rambler and can not find any info on who she is to research her ??? Any ideas please desperate!!
asked by Jessica 
science
Betty is sledding down a hill going 12 m/s. She hits a very steep patch and starts to speed up 1.5 m/s2. How fast will Betty be moving 2 seconds later?
asked by Megan 
Calculus (Urgent Help)
The graph of y=cos x * ln cos^2x has seven horizontal tangent lines on the interval [0,2pi]. Find the xcoordinate of all points at which these tangent lines occur.
asked by JADE 
reading and math
why do kids have to read math and reading thare should be less homework less reading and less math
asked by teddy dunc 
Math
The average length of a Rufous hummingbird is 3 1/2 inches. The average length of a Broad tailed hummingbird is 4 1/2 inches. How much shorter is the Rufous hummingbird? 1?
asked by Jerald 
income tax
Jeanette owns a rental property that she used for 20 days and rented for 80 days. The rental income was $10,000 and expenses included the following; mortgage interest $2,500; property tax $1,500; insurance and repairs $1,000 and depreciation $2,000.
asked by shelli 
college algebra
Write the equation of the circle in standard form. Find the center, radius and intercepts. x^2 + y^2 + 4x + 2y  20 = 0
asked by ladybug 
math
alison invests £400 in an account paying compound interest 4% per annum.find the interest earned over 5 years,round your answer to 3 significant figures.
asked by rahel 
Chemistry
A sample of CO2 gas in a syringe has a volume of 25.0 mL at 20.0 ºC. If you warm the gas in your hand to 37 ºC, what will be the final volume?
asked by Jason 
chemistry
Three oxyacids of phosphorus nd its structure
asked by Anonymous 
4th garde math
find the landmark in the set of number: 12, 16, 23, 15, 16, 18.
asked by Anonymous 
Chemistry
What molarity of KNO3 should be used in order for dilution of 63.2 mL to yield 253 mL of 0.319 M KNO3?
asked by Kimber 
Chemistry
a 2.00 g sample of zinc was dissolved in 50.0 mL of 6.0 M HCL the final volume of solution was 50.2 mL... a. what was the concentration of Cl after the zinc was dissolved?? b. what was the concentration of hydrogen ion after the zinc was dissolved??
asked by Anne 
CHEMElectron Density
For each of the following pairs, identify which element tends to attract electron density from the other in a covalent bond and enter the four letters corresponding to these choices (e.g. ACEG, BDFH, etc.) A) O and B) C C) O and D) H E) Hg and F) C G) Si
asked by Mikhaela 
math
How many threedigit integers are multiples of both 4 and 6 and have a unit digit of 2?
asked by Debbie 
Chemistry
Ca(OH)2 reacts with CO2 to form CaCO3 and H2O. A. How many grams of CaCO3 will be formed if 4 grams of Ca(OH)2 are used? B. If you have 2.5 grams of Ca(OH)2 and 0.5 of CO2, which is the limiting reactant?
asked by Charles 
science
Please tell me 2 websites where i can find out if any robots or satellites landed on Venus.
asked by Anonymous 
maths
prove Zn addition is commutative?
asked by JENNY 
Physics
A 0.4 kg ball strikes a smooth level floor with a velocity of 5.0 m/s, 60 degrees below the horizontal. It rebounds off the floor with an unknown velocity and reaches a maximum rebound height of 0.60 m. If the duration of the collision with the floor is 50
asked by AH 
maths
explain why are the following not groups: 1)the set of Z integers with operation subtraction 2)The set of Z integers with operation addition 3)The set of R* of all non zero real numbers with addition
asked by JENNY 
Physics
Well, hard to imagine the picture, but by the description the wires each side are at 16 deg. back on each side of the tooth, i.e. each at 16 deg. to the face of the tooth. Each has 18N. tension. (sin 16) x 18 = 4.9608N. Double it (2 wires), = 9.9216N. back
asked by D 
North American Climate
If this statement is false please replace it with the correct word Subarctic continental is not a climate zone found in the lower 48 states of the U.S.? desert or mid latitude dry I believe that the statement is correct.
asked by rawr... im a dinosaur.... rawr 
math
Use an Addition or Subtraction Formula to find the exact value of the expression. Sin(−5π/12)
asked by TEETEE 
Physics
In the drawing, the weight of the block on the table is 384 N and that of the hanging block is 195 N. Ignore all frictional effects, and assuming the pulley to be massless. (a) Find the acceleration of the two blocks. m/s2 (b) Find the tension in the cord.
asked by Donald 
physics
A 80 kg object slides at a 20 degree plane downward at 5m/s. An object 2 collides with object 1 by falling from 7 meter height and they stick together. Final speed of objects? I know the speeds would be the same. Would momentum equation work to solve this?
asked by Laura 
English Language
Yes,she is my cousin. Is the comma identify as an introductory phrase?
asked by Ann 
High School Physics
The player kicks a football with an initial speed of v0 = 98 ft/s. Determine the two possible values for the angle of the kick, theta. The distance of the football field is 126 ft. Also determine the corresponding time at each of these two angles.
asked by . 
High School Physics
The player kicks a football with an initial speed of v0 = 98 ft/s. Determine the two possible values for the angle of the kick, theta. The distance of the football field is 126 ft. Also determine the corresponding time at each of these two angles.
asked by . 
Algebra
write the standard form of the equations: through (1,3) and (4, 4) through (5,4) and parallel to y=4
asked by Maddie 
Physics
In what way does gravity change with distance from Earth?
asked by Sharvani 
geometry
Triangle ABC is an equilateral triangle with sides of 1. Arcs are drawn from A,B,C. what is the perimeter?
asked by Anonymous 
Calculus (Help)
The graph of y=cos x * ln cos^2x has seven horizontal tangent lines on the interval [0,2pi]. Find the xcoordinate of all points at which these tangent lines occur. What the derivative of the function?
asked by Lerinda 
hum 111
How does the process of refining a solution for a problem differ from the process of refining a solution for an issue? Which do you think is more challenging?
asked by Anonymous 
Physics (Science)
Hi, For my physics class, we have to design our own experiments to calculate the amount of power exerted for each situation. However, I'm really unsure of how to go about finding the power for the situations. The first situation is doing a pushup, and the
asked by Krissy 
Chemistry
Which element's oxides consist of individual molecules? Pb, C, Ge, Sn, Si, Hg
asked by Kerishena 
HCA 2220
You are an office manager working in an orthopedist office. You are responsible for filling out the insurance billing forms and processing any denials. While reviewing the denials, you find they are in fact billable services. The issue is a lack of
asked by University of Pheonix 
physics
An ammeter measures rate of change of current or flow of charge?
asked by HandsomeLala 
Health
You have been given the task of making a presentation to a group of junior high school students arguing against making marijuana legal. What are four risks associated with its use that you could include in your talk?.
asked by DestinyLashea 
Science
To calculate _____ you divide the total distance traveled by the total time it takes to travel that distance.
asked by Bell 
math
how many 8 in long ribbons can mona make from a 4ft peice of material
asked by Anonymous 
chemistry
salt spread on icy roads because
asked by Anonymous 
physics
State the surface powers required to produce the following lenses with +6.25D front curves. a. 0.50 DS b. +0.50 DS c. +1.75 DS
asked by Anonymous 
Research Methodology for International Relations m
I need help with an article and a chapter. I need to find a tutor who cna provide help with them.
asked by soukayna 
Math
Max creates a lavender dye by mixing 3 parts of red dye. Will a mixture of 14 parts of blue dye with 23 parts of red dye create the same shade of lavender?
asked by Juan 
SS8R  HELP!
business(es) that andrew carnegie controlled????????????
asked by Laruen 
science
how does area of an opened parachute affect the size of force
asked by boyagain 
math homework
Mr. Burton rides out into the country on his bicycle at 9 mph . Four hours later he starts back riding his bicycle at 6 mph. How long will it take him to get back?
asked by Bob 
math please help
Joy needs to mix a 20% glucose solution with a 60% glucose solution to create 200 millileters of a 50% solution. How many millileters of each solution must Joy use?
asked by Anonymous 
Chemistry
If 25.9 mL of 300 M NaCl is diluted to 136 mL, what is the molarity of the dilute solution?
asked by Kimber 
maths
x(x5)(x+2) is the answer to this 4x^2 + 10x if not could you write the correct answer and explain hoow you got it
asked by amy 
Geology
How do I do the foll9owing example? K40  A40 (1.25 billion years) After careful analysis, a geochronologist determines that an unweathered, unmetamorphosed mineral sample contains 7 trillion atoms of the radioactive element K40 and 105 trillion atoms
asked by Nicole 
science
velocity of 2.9 m/s speed increase of 7.6 m/s in 4s What is her acceleration ?
asked by carlos 
math..reiny..help!!
is that the area of big or small triangle?
asked by dan 
Calculus
If f(x)=8 ln(6x+3 ln (x)), find f'(x)
asked by Susanna 
math
what is a millogram
asked by ana 
dress making design
s nap fasteners are sewn with the knob halves attached to the fabric overlap of a garment because
asked by siri 
art
what is the best way to create poster of self esteem using slogan?
asked by janki 
Chemistry
ÄSvap > 0 Give a molecular interpretation for
asked by Sue 
math
solve for x e^(2x+3) 7 = 0
asked by Jason 
Math
In 2010 I loaned Johnnie $5000.00 @ the interest rate of 10%, he only made two payments. It is now 2012 and I would like to know what would the interest and pay out of this loan be?
asked by Treasure Roy 
math URGENT!!
the midpoints of the sides of a triangle are (1,1),(4,3),and (3,5). find the area of the triangle. please answer and show how u did it step by step please!!!!
asked by dan 
social
What is a key social system support during middle adulthood?
asked by R.T. 
Math
Change 30/20 into a mixed number
asked by Jennifer 
Tax question.
Joe age 24 single amd not claimed as a dependent. In 2011 his only income Was 5,000 of unemployment and he had 500 of net income from mowing lawns. Joe must file a 2011 tax return. True or false I'm unsure because you I don't know if he has to file because
asked by Lil 
Algerbra
is 3x=4y7 a direct variation why or why not?
asked by MIA 
math
caculate the following fractions 1/3+ 2/3+ 5/3 what is the answer to these fractions and show houw you get the answer. please.
asked by Dana 
algebra
4
asked by Anonymous 
math
what is (14x5)+(6x4)simplified? Please help I would appreciate and PLEASE show the work!! Thank you!!
asked by t 
Science
How much work do you do when you push a 30kg pumpkin across 1.5 meters
asked by Anonymous 
Science
A baseball travels 50 m in 10 s. What is the average speed of the baseball?
asked by Bell 
Science
The unit m/s is the _____.
asked by Bell 
geometery
1.given the function y=x^24x+5,find the following: a.vertex b.maximum or minimum c.axis of symmetry d.yintercept e.xintercept(zeros) f.graph
asked by sophie 
science
How hot can venus get. How cold can venus get.Please help
asked by Anonymous 
math
speakers place every 10 yds around the wall of school auditorium. Auditorium is 210 ft by 300 ft. How many wall speakers are placed around the auditorium?
asked by lele 
Geometry
my geometry problem set says "find the ratio of CG : CB" CG=6.3 and CB=19 so to find the ratio i would divide the 19 by 6.3 (we have to round so it would be a 3:1 ratio) or would it be the other way around? i think it's the 19/6.3 but i'm not sure...
asked by Jess 
Math
Some chickens, cows, and sheep are in a field. Their number of legs is 12 more than twice their number of heads. How many 4 legged animals are in the field?
asked by Janet 
World Geography
When attacking Russia in 1941,Germany...
asked by Karla 
English singluar and plural possessive nouns
1. Slaves lives were terribly hard. 2. They wre at the mercy of owners whims. 3. A runawy life was in danger. 4. Often runaways traveled by the moon light. 5. It could take several weeks travel to reach the Norht. 6. Slaves hid directions in a song words.
asked by Robin 
math
(10x+2)(x10) simplified please! Thank you,please show the work!
asked by t 
Math
6divideby84
asked by Dree 
math URGENT!!!!
the midpoints of the sides of a triangle are (1,1),(4,3),and (3,5). find the area of the triangle. please answer and show how u did it step by step please!!!! how do i find area of the smaller triangle?
asked by dan 
science
5 letter science word, with the 4th letter o
asked by Anonymous 
Chemistry
How many milliliters of 2.50 M KI must be diluted to make 365 mL of 0.432 M KI?
asked by Kimber 
math
what is (x3)+(4x7)simplified? please show the work, thenk you.
asked by t 
science
velocity of 2.9 m/s speed increase of 7.6 m/s in 4s What is her acceleration ?
asked by carlos 
chemistry
an electromagnetic wave has a frequency of 10 exponent 21hz. what type of electromagnetic wave has this frequency
asked by magdalene 
math
in all there are 24 grasshoppers ken bought 6 less than mattie how many did each person buy
asked by tianna 
math
Just wanting to make sure I've done this right... (a^2+5a19)/(a+2)
asked by Anonymous 
math
What's 6% of 22?
asked by blondee 
math
solve for x ln(52x)=3
asked by Narra 
Math
x^22x5
asked by Tiarra 
Math
How do i set it up 4divide92
asked by Dree 
maths
rs3tu=1 2r+4s2u=2 3r+4s2t=0 r+2t3u=3 find the solution
asked by sim 
math homework
x is defined as one more than the number of digits in the number x . For example , 1000 = 5. For what value of x wil x = x ?
asked by Bob 
math
evaluate the following expression 20/(4+6)x25
asked by Gabby 
Intermediate Algebra
8y+20/8 reduced to the lowest term
asked by Haley 
Math
4divide 92
asked by Dree 
Math
8/12=
asked by Jennifer 
Math +/ Mixed numbers
2 1/4+3 3/4=6? 4 5/63 1/6=1 2/3 8 5/12 1 1/2= 7 1/3
asked by Jerald