Questions Asked on
November 28, 2012

physics
A weightlifter has a basal metabolic rate of 80.0 W. As he is working out, his metabolic rate increases by about 650 W. (a) How many hours does it take him to work off a 450Calorie bagel if he stays in bed all day? (b) How long does it take him if he’s
asked by Marcus 
college algebra
Use properties of logarithms to condense the logarithmic expression. Wreite the expression as a simple logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions. Inx + In 15 Please show work
asked by Ladybug 
calculus
Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. (Round your answer to four significant digits.) HINT [See Quick Example
asked by Leanne 
calculus
Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. (Round your answer to four significant digits.) HINT [See Quick Example
asked by Leanne 
college algebra, Please help!!
solve the following equation 9^x1 = 144(6x) please show work.
asked by confused 
calculus
If w = , find w.
asked by meelizah 
calculus
If z = 2cis 60°, find z^4 in rectangular form.
asked by anny 
English
1. Do you have some brothers? 2. Do you have any brothers? (Which one is grammatical? Are both OK?)
asked by rfvv 
Math
Cody has a circular fish pond with a diameter of 6.4 feet around which he wants to put a sidewalk. He has enough concrete left over to cover an area of 65 square feet. Assuming the sidewalk is of uniform width, how wide can the sidewalk around the pond be?
asked by Morgan 
calculus
y1= sin (x) y2= (tanx) It is graphed in the interval [0, pi/2] find the integral
asked by Alex 
chem
Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may
asked by sabrina: This is how the question is written. 
CHEMISTRY
Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L1 CH3CH2NH2 (aq) is titrated with 0.150 mol L1 HI(aq) solution at 298 K. (a) Write a balanced chemical equation for the neutralization
asked by sabrina: PLease someone help! 
investment
Mr. Centeno invested P50,000, part of which at 5%per year and the rest at 6% per year. His annual income from the 2 investments was P2,000. How much did he investat each rate?
asked by HELP HELP MNHS 
Science
A boat is sailing 42 km/hr upstream on a river that is moving at 16 km/hr downstream. What is the velocity of the sailboat.....can you show me the formula too...not understanding this
asked by Joy 
elementary
this ecosystem is very hot and very dry with little or no rain. desert grassland rain forest forest how guess the answer can u explain me
asked by Latha 
CHEMISTRY
A volume of 100ml of h20 is initially at room temperature (22.0c). A chilled steel rod at 2.00C is placed in the water. If the final temperature of the system is 21.2C , what is the mass of the steel bar?
asked by Anonymous 
investment
A certain amount of money is invested at 6% per year. A second amount is P5000 larger than the first is invested at 8% per year. The interest from the investment at the higher rate exceeds the income from the lower investment by P500. Find the investment
asked by HELP HELP MNHS 
investment
A certain amount of money is invested at 6% per year. A second amount is P5000 larger than the first is invested at 8% per year. The interest from the investment at the higher rate exceeds the income from the lower investment by P500. Find the investment
asked by HELP HELP MNHS 
CHEMISTRY
1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may
asked by sabrina: PLease help!I fixed the question 
CHEMISTRY
The halfcell, Tl  Tl+(1 mol L1), is connected to a Pt  H+  H2(1 atm) halfcell in which the concentration of H+ is unknown. The measured cell voltage is 0.0841 V and the Pt  H2  H+ halfcell is the cathode. Standard reduction potentials are given on
asked by sabrina: Anyone know how to answer this? 
CHEMISTRY
Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L1 CH3CH2NH2 (aq) is titrated with 0.150 mol L1 HI(aq) solution at 298 K. (a) Write a balanced chemical equation for the neutralization
asked by sabrina: I am having difficulties with this! 
physics
A cart of mass 1.4 kg is attached to a horizontal spring with stiﬀness 44.4545 N/m and is able to move horizontally without friction. The cart is then acted on by a sinusoidal driving force with ω = 4.9 Hz and an amplitude of 1.74532 N. What is the
asked by JTC 
Algebra
1) A corner lot that originally was square lost 185m^2 of area when one of the adjacent streets was widened by 3 m and the other was widened by 5 m. Find the new dimensions of the lot. (Hint: Let x = the lenght of a side of the original square lot. ) 2) A
asked by Remmy 
Physics
Which requires more energy: to raise 1 kg of liquid water from 0 to 100 degrees (Celsius) or to turn that water to steam after it hits 100 degrees? Assume the specific heat capacity of water is approximately independent of temperature.
asked by Anon 
Stats
Many colleges and universities hold a “blood drive” for organizations such as the Red Cross. To help with the planning of an upcoming blood drive, we want to estimate the proportion, p, of students and faculty who would be willing to donate a pint of
asked by Matt 
English
1. You are lucky that you have such a nice grandfather. 2. You are lucky because you have such a nice grandfather. 3. You are lucky to have such a nice grandfather. (Are they all the same and grammatical?)
asked by rfvv 
Stats
The Ledd Pipe Company has received a large shipment of pipes, and a quality control inspector wishes to estimate the average diameter of these pipes. A random sample of 18 pipes produces an average diameter of 2.56 mm with a standard deviation of 0.05 mm.
asked by Matt 
preparing for an elocution
I have an elocution theme "united we stand divided we fall" can any one help me for preparing this?
asked by godwin 
Engish
I would like to know about some gestures. 1. If somebody puts his spread right hand on his belly, what does this gesture mean? 2. If a person puts his thumb up, what does this gesture mean? 3.If a person makes a circle with a thumb and the index finger,
asked by rfvv 
physics
3 points particles with masses 4kg,2kg,3kg are at the corners of equilateral triangle of side m =2m.
asked by timmy 
trigonometry
an isosceles triangle is inscribe in aradius 100 in .find the angles of the triangle if it is base subtends an arc of 143.7 in
asked by jophy 
English
In the old days, people thought that their souls left their bodies when they sneezed. They were worried that their souls might not get back into their bodies safely. So they said "Bless you" to pray for the safe return of the soul. No one believes it
asked by rfvv 
Mathis
Guy placing boaters around the room. The room is 18 by 9 feet. How many tiles did he use to cover the floor
asked by Anonymous 
chemistry
15.00 ml of NaOH is obtained in an Erlenmeyer flask. Before titrating with .2500 M HCl, the initial volume of acid in a buret is read as 2.08 ml. At the endpoint the final volume of acid in the buret is 25.20 ml. What was the concentration of NaOH?
asked by lisa 
Phy
A 17kg child slides down a 2.7m high playground slide. She starts from rest, and her speed at the bottom is 1.8 m/s. What is the change in the thermal energy of the slide and the seat of her pants?
asked by Mary 
PHYSICS  PLEASE HELP
A car is traveling at 10 m/s. By what factor does the car's kinetic energy increase if its speed is doubled to 20 m/s?
asked by Mary 
PHYSICS  PLEASE HELP
Part A: A cardinal (Richmondena cardinalis) of mass 4.50×10^−2 kg and a baseball of mass 0.142 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude p(c) of momentum to the magnitude p(b) of the baseball's momentum? Part B: A
asked by Mary 
math
aileen's brother is twice as old as her. Ten years from now, her brother will be 13 years older than her. what is aileen's age?
asked by alliah coleen malonzo 
English
1. My parents want me to grow healthy. 2. My parents want me to become healthy. 3. My parents want me to grow healthily. (Does #1 mean #2? Does 'grow' mean 'become'? What about #3? Is #3 grammatical?))
asked by rfvv 
EnglishNative speakers
Need help with one sentence structure. I don't know if I am going to be able to explain it good. It goes like this "the measures will have to be much more drastic than if they were conducted today" I need help with this part "than if they were conducted
asked by mark 
statistik
twenty percent of the employees of a large company are female.use the normal approximation of the binomial probabilities to answer the following question. what is the probability that in a random sample of 80 employeses a)exactly 16 will be female? b)14 or
asked by mira 
chem
How many pH units change are usually required for an indicator to undergo a color change?
asked by vince11 
chem
What relationship exists between H^+ ion concentration and OH^ ion concentration? Waht is the OH^ concentration of an aqueous solution with the H^+ concentration of 10^4M. Calculate the pOH? Need help with this pls. thank you.
asked by chemdummy 
statistik
the average starting salary of this yaer's graduates of a large university (LU)is $25000 with a standard deviation of $5000.futhermore,it is known that the starting salaries are normally distributed. a)what is the probability that a randomly selected LU
asked by mira 
physics
i cant solve this problem i need for help please through how many does a point on the earth's surface move in 6h as a result of the earth's rotation ? what is the speed of a point on the equator ? take the radian of the earth to be 6370 km thank you
asked by need for help 
physics
i cant solve this problem i need for help please through how many does a point on the earth's surface move in 6h as a result of the earth's rotation ? what is the speed of a point on the equator ? take the radian of the earth to be 6370 km thank you
asked by need for help 
CHEMISTRY
The halfcell, Tl  Tl+(1 mol L1), is connected to a Pt  H+  H2(1 atm) halfcell in which the concentration of H+ is unknown. The measured cell voltage is 0.0841 V and the Pt  H2  H+ halfcell is the cathode. Standard reduction potentials are given on
asked by sabrina: Can someone please help! 
CHEMISTRY
1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may
asked by sabrina: who can help? 
science
0.042g of Magnesium was reacted with excess HCl at S.T.P. A. Write the equation for the reaction B. How many moles of Mg were used? C. What volume of Hydrogen is produced in this reaction?_
asked by sai 
chem101
If a solution contains 0.0100 mole of HCl in 10.0 mL aqueous solution. a.) What is its molarity? My answer is 1M (0.0100 mole/10.0 mL * 1000 mL/1L = 1M) b.) What is H^+ ion concentration for this solution? c.) What is the expected pH for this solution? pls
asked by audrey12 
university physics
A bat flying toward a wall at a speed of 6.47 m/s emits an ultrasound wave with a frequency of 27.5 kHz. What frequency does the reflected wave have when it reaches the flying bat? (Assume that the speed of sound is v = 341 m/s.)
asked by bülent 
math
y1= sin (x) y2= (tanx) It is graphed in the interval [0, pi/2] find the integral
asked by Alex 
science
unscramble pergorsaph to make a six legged animal
asked by eileen 
Math
Mr. Logan purchased $390 in clothing (excluding sales tax). He bought 5 identical shirts, 3 identical pairs of pants and 2 identical pairs of shoes. Each pair of shoes cost twice the combined value of one shirt and a pair of pants. Each pair of pants cost
asked by Sunshine 
Math
1. You have 3500 in savings for 9 months at a rate of 4.5%. How much will you have at the end of that time? Ans. my book says: 3,618.13 I come up with: 118,125 2. Scale reads 1 inch = 24 inches for a house window. If window measures 1 3/4 inches, what is
asked by Edna 
Shasha
What is the exact value of sin(2 theta) if cos (theta)=3/5 and (theta) is in quadrent 4? 12/25 24/25 12/25 7/25 24/25
asked by Help STEVE! 
chem
1.Can a solution ever have a pH=0? 2.What does pH = 0 suggest about the concentration of the acid? 3.Can the pH ever be negative? 4.What is the significance of a negative pH in a solution? pls need help we didn't cover this in lecture yet.
asked by tracy 
Math
The coordinates of the endpoints of a line segment PQ are P(3,7) and Q(11,6). Find the coordinates of the point R on the yaxis such that PR = QR. Please include the workings, as I would like to be able to perform these problems unassisted in the future
asked by Aldwin 
chemistry
what is the pH of a 0.10 M solution of methylamine (CH3NH2, kb= 4.4*10^4) at 25 degree C?
asked by Crystal 
chemistry
what is the pH of a 0.10 M solution of methylamine (CH3NH2, kb= 4.4*10^4) at 25 degree C?
asked by Crystal 
history
Do you think that the Korean War was merely a civil war in which the United States supported one side, or should it be considered an international war in which the United States used the United Nations to further its anticommunist policies?
asked by mark 
Calculus (help Steve plz)
1) if w = , find w? 2) which expression is equivalent to (sin x+1) (sin x 1)? A. Cos^2x B. cos^2x C. Cos^2x+1 D. Cos^2x1 E. cos^2x1
asked by Breanna 
Math word problem
Jason travels from A for 5 km north and then 7 km due west to B, he then travels bak directly from B to A. Find the total length of his journey
asked by Jazmine 
math
find the average return over the last ten years on a mutual fund . what investment account of 1,000 for 5,10,15,20,25,30,35 and 40 years compound quaretly. is there a point at which the investment appears to grow more quickly
asked by Tonya 
physics
a clothes washer starts from rest and spins up with an angular accceleration of 10/rad/s^2. Determine the angle through which the washer has moved afer 6 seconds.
asked by anna 
Calculus
Convert theta=225degrees A y=1 B y=1 C y=x D y=x E x=1
asked by Breanna 
Proofs and numbers
Compute empty(24). For each element of Z(intergers)=24 decide whether the element is a unit or a zero divisor. If the element is a unit, give its order and find its inverse.
asked by yin 
Proofs and numbers
Use Fermat's Little Theorem to find the remainder on division of 5120 by 19.
asked by yin 
Math
A floor is 45 inches by 30 iinches. what is the largest square tile you could use to cover the floor?
asked by Gritona 
Proofs and numbers
Imagine you are an old Chinese scholar teaching Proof and Numbersto Chinese princes. When you group your pupils in rows of five, two are left over. If you group them in eights, only one is left over. So you try it with rows of nine, but now you are left
asked by yin 
painting
a gallon of paint will cover about 350 square feet of space. You are painting 3 halls of a school. Ignoring the doors, the halls are 10 feet tall and 125 feet long. You buy 11 gallons of paint. Did you buy enough of paint?
asked by Anonymous 
Math
Find the length of the longest steel rod which could fit into a cardboard carton of dimensions 1.2 m by o.8 m by o.6 m. Please show your workk :)
asked by Mellany 
Proofs and numbers
Solve the congruence 24x identical to 42 (mod 30) for x. List all the solutions (if there are any).
asked by yin 
Proofs and numbers
Use Fermat's Little Theorem to find the remainder on division 5^120 by 19.
asked by yin 
Proofs and numbers
Prove the following theorem: Suppose p is a prime number, r, s are positive integers and x is an arbitrary integer. Then we have x^r identical to x^s (mod p) whenever r is identical to s (mod 11).for x belongs to an integer
asked by yin 
physics
A spring of negligible mass stretches 2.20 cm from its relaxed length when a force of 10.50 N is applied. A 1.100 kg particle rests on a frictionless horizontal surface and is attached to the free end of the spring. The particle is displaced from the
asked by Anonymous 
Calculus
Which is the correct cofunction identity for (tan theta?) A csc(90degrees  theta) B sec (90degrees  theta) C sin (90degrees  theta) D cos (90degrees  theta) E cot (90degrees  theta)
asked by Philip 
science
can you unscramble the following letters to name a six legged animal pergorsaph
asked by eileen 
Simplify
Simplify expression tan(x)csc(x) ??? Cos x cos x Sin x Sec x sec x
asked by Philip 
physics
You need to siphon water from a clogged sink. The sink has an area of 0.484 m2 and is filled to a height of h = 3.99 cm. Your siphon tube rises h1 = 40.6 cm above the bottom of the sink and then descends h2 = 103 cm to a pail as seen in the figure below.
asked by ken Lopez 
Plzzzzz help urgent math
A 4.5 m long pipe rests against a 2 m high tank, one end of the pipe is on the ground 3 m from the base of the tank. How much of the pipe overhangs the tank?
asked by Mia 
English
Hello. I'll be grateful for your help. Which word is it better to use to complete the following sentence: "Only two people died in the fire but there were a lot of 1)victims; 2)casualties"? The two words look like synonyms to me(I consulted a dictionary),
asked by Ilma 
chemistry
Vanadium oxide is used as an industrial catalyst. The percent composition of this oxide is 56.0% vanadium and 44.0% oxygen. Determine the empirical formula for vanadium.
asked by chris 
chemistry
Naphthalene, commonly known as moth balls, is composed of 93.7% carbon and 6.3% hydrogen. determine the empirical for naphthalene. molecular formula for Naphthalene. Determine the number of empirical formulas you would need to make a full naphthalene
asked by chris 
Help ASAP calculus
Which is the 7th term in the sequence of the squares of all odd numbers starting from 1? 144 169 196 200 225
asked by David 
Steve help!
10,000 students took a math test. If there average score was 40 with standard deviation of 10, how many students must have scored between 20 and 40 marks? 3,772 2,227 5,000 3,334 4,772
asked by Tina 
programming
Using Raptor, create a condition loop that will ask the user for input of two numbers. The numbers should be added and the sum displayed. The loop should also ask the user if he or she wishes to enter two more numbers and perform the operation again, the
asked by Chris 
Probability
4 fair coins are tossed. What is the probability that all the outcomes are heads?
asked by Tina 
Steve pre calc
What is the right hand limit of f(x)= x9/x6 as x approaches 7? I think it's 1.
asked by Leandra 
Confused calculus
Pete invests $10,000 in a certificate of deposits that earns 3% interest , compounded yearly. What will be te compound income at the end of 5 years?
asked by Leandra 
Chemistry
What is the chemical breakdown of a cheese pizza
asked by Elizabeth 
Calculus
What is the sum of all the odd #s between 100 & 200??
asked by Gilbert 
math
at the bowling alley Angela rented shoes for $3.00. It cost her $2.50 to bowl each game. develop an equation using the form C(x)=mx+b, where C(x) is the total cost and x is the number of games bowled.
asked by cat 
Probabilty
Biased coin has a 0.4 probability of landing on tails. The random variable x, based on a single toss of the coin, is defined as follows: x=0 if heads appears; x=1 if tails appears. What Is the mean value of X? Is it . 0.3 .4 .6 .5 .7
asked by Gilbert 
physics
A technician wishes to produce the lens +2.00DS/+2.00DC x90 in toric form, in CR39 (n=1.498) with a 5.00 base curve. After finishing the toroidal surface with the CR39 tool it is discovered that, in error, they have used a plastics material of refractive
asked by Please help... 
Math  Algebra
The length of the hypotenuse of a right triangle is 13 cm. The length of one leg is 5 cm. Find the length of the other leg.
asked by Elleighette B. 
PreCal
Angles of elevation to an airplane are measured from the top and the base of a building that is 40 m tall. The angle from the top of the building is 37°, and the angle from the base of the building is 40°. Find the altitude of the airplane. (Round your
asked by Kendall 
math
Please explain the order of operations for the formula 30 divided by 5 times 6 Do I do the multiplication first, or do I do the the operations from left to right?
asked by Daniel 
Math
Tracy made a stained glass jewellery box. It measured 20cm by 12cm by 8cm. a) About how much glass did Tracy use? b) one piece of glass has an area of 100 cm squared and costs $3.65. How much did the glass cost?(assume all pieces can be used Please help
asked by Cherie 
PreCal Trig
Two lookout towers are situated on mountain tops A and B, 4 mi from each other. A helicopter firefighting team is located in a valley at point C, 3 mi from A and 2 mi from B. Using the line between A and B as a reference, a lookout spots a fire at an angle
asked by Kendall 
Chemistry
How many kilograms of chalcopyrite must be mined to obtain 315g of pure Cu?
asked by Jen 
BUS 610 Organizational Behavior
How does the Hawthorne study incorportate human resource functions?
asked by Tameika 
Steveeee help plz
What is the area is square units o the region under the curve of the function f(x)=4, on the interveral from x=1 to x=3
asked by Alex 
History
I am to write a short essay on the pros of making marijuana legal and than I need to debate the issue. Can you help with websites
asked by Vicky 
Social Studies 8
3. The DemocraticRepublicans believed in strong state governments and (1 point) rule by the wealthy class. a national bank. a strong federal government. rule by the people. I believe it is either A or B, but I am not sure. Help?
asked by L0vleyLayna 
Math
The surface area of a cube is 150cm squared. The area of one face of the cube is 25cm squared. What is the length of one edge of the cube?
asked by Cherie 
Chemistry
If 22.15 milliliters of 0.100 molarity sulfuric acid is required to neutralize 10.0 milliliters of lithium hydroxide solution, what is the molar concentration of the base?
asked by Kaela 
psychology
Can you give examples perhaps in a work setting or even in society on contrasting differences between a dominat culture and subclulture?
asked by Tameika 
Lang Arts
2. In “Cream Puff,” Jen is a dynamic character because she shows her active personality in the story. is the main character of the story. stays the same during the course of the story. changes during the course of the story. 3. Jen resolves her
asked by Jman 
chemistry
calculate the amount (g) needed to make 25 ml of 0.1 m co(no3)2 6h2o
asked by Anonymous 
earth
Hello.. Which four gases did the earth`s atmosphere coantain in the first billion years?
asked by Niks 
Steve math help.
What is the limit of f(x) = 4x^2 6/ 4x^2 as x approaches infinity
asked by Roman 
biostatistic
can we use ttest for two independent sample and dichotomus study with less than five success or failures?
asked by nono 
history
6. At the Yalta Conference of 1945, the military situation favored A. Churchill. B. Eisenhower. C. Stalin. D. Roosevelt. i think is c
asked by henry 
Physics 1
A catapult 100 m long launches a 3.0 x 10^4 kg jet from the deck of a carrier. Starting at rest, the plane takes off with a speed of 80 m/s. Find: a)The acceleration, b) the average force, c) the work done, d) time to accelerate , e) the power developed.
asked by John 
algebra
Completely factor the following expression. 1.4x^28x12+6x
asked by Janet 
Physics
A girl of 50 kg slides down a 8 m long slide into a pool. The upper end of the slide is 4.0 m above the water and the lower end of the slide is at the level of the water. Assume a coefficient of friction of 0.20, find: a) the potential energy of the girl
asked by Alfred 
physics
A 2 kg mass falls 40 m and buries itself into the ground 0.40 m. Find: a) How much work was done by gravity, b) How much potential energy was lost, and c) What was its speed when it hit the ground, and d) the average force causing the mass to stop once it
asked by Ted 
Math
The demand function for a certain brand of CD is given by the following equation where p is the wholesale unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. P=0.01X^20.1X+6 Determine the consumers' surplus if
asked by Ashton 
Algebra 8th grade please help!!!!!!
A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? Please help!!!! a)39 m2 b)169 m2 c)117 m2 d)142 m2
asked by April :) 
geometry
A painter leans a 20ft ladder against a building. The base of the ladder is 12 ft from the building. To the nearest foot, how high on the building does the ladder reach?
asked by Anonymous 
physics
An archer shoots an arrow toward a 300 g target that is sliding in her direction at a speed of 2.45 m/s on a smooth, slippery surface. The 22.5 g arrow is shot with a speed of 40.5 m/s and passes through the target, which is stopped by the impact. What is
asked by Anonymous 
trig
given that 0 is less then or equal to theta and theta is less then or equal to pi. ans cos theta = 2/squar root of 7. Find sin theta
asked by Lilly 
Math
1. What is the area of triangle ABC if a = 47.0°, β = 57.8°, and a = 10.2 cm? A. 58.2 cm2 B. 43.5 cm2 C. 38.4 cm2 D. 33.3 cm2 2. Given triangle ABC with β = 41°, g = 14°, and a = 5.0, find the value of c. A. 6.2 B. 4.0 C. 1.5 D. 17 3. Resolve the
asked by Erick 
Finance
Stephenson Real Estate Capitalization
asked by Melinda 
Calculus
Evaluate, in spherical coordinates, the triple integral of f(rho,theta,phi)=cos (phi) , over the region 3
asked by Mackenzie 
Chemistry
In a constantpressure calorimeter, 50.0 mL of 0.320 M Ba(OH)2 was added to 50.0 mL of 0.640 M HCl. The reaction caused the temperature of the solution to rise from 23.47 °C to 27.83 °C. If the solution has the same density and specific heat as water,
asked by Ag10 
chemistry
At constant volume, the heat of combustion of a particular compound is –3334.0 kJ/mol. When 1.569 g of this compound (molar mass = 125.76 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 5.173
asked by Ag10 
trigonometry
2. Choose the point that lies on the curve r = 2 – 3 sin θ. A. (5, 3π/2) B. (–2, π) C. (1, π/2) D. (5, π/2 3. Which of the following is not an approximate solution of x5 – 1 = 0? A. 0.3090 – 0.9511i B. 0.8090 + 0.5878i C. 0.3090 + 0.9511i D.
asked by Erick 
Algebra
Find the axis of symmetry for y=x^2+4x7 Find the axis of symmetry for y=3x^218x+1 Find the axis of symmetry for y=5x^2+10+3 Determine if the vertex is a maximum or minimum and identify it y=2x^23 Determine etc etc for y=x^22x Determine etc etc for
asked by Breona 
Chemistry
What is the final volume (L) of a 1.00 L system at 315 K and 1.10 atm if STP conditions are established?
asked by Sel 
physics
The torques acting on the crane boom can be computed about anaxis passing through the top of the boom. (this is the place wherethe spring scale and mass hanger connect to the boom) apply thesecond condition for equilibrium to the crane boom and derivethe
asked by Anna 
financial
2. A bank is considering an investment in a municipal security that offer a yield of 6 percent. What is the security’s tax equivalent yield if the bank’s tax rate is 35 percent
asked by sandra 
Physical science
A cross country runner runs 12km in 41 minutes. What is his average speed?
asked by Jett 
Jennifer
How to balance the following equation: I2 + Cl = ?
asked by Chemistry 
algebra
Completely factor the following expression.1.) 5c^224cd5d^2
asked by Janet 
algebra
Completely factor the following expression.1.) 5c^224cd5d^2
asked by Janet 
math
what is 4 divided by 371
asked by lolo 
us history
Constitutional scholars have pointed out there is an inconsistency in Justice Marshall's opinion with respect to what the constitution specifically provides. What is the inconsistency?
asked by Tylor 
Grammar
1.“Followup” or “followup” can be a noun or an adjective. A) True B) False I answered A 2. Select the 2 correctly punctuated sentences: A) His followup appointment is in 2 weeks. B) His follow up appointment is in 2 weeks. C) His followup
asked by Marie 
math 105
Need help with 8+(17) calculate
asked by katharine 
Grammar
Sometimes the only way to tell if a possessive word is singular or plural is by the context of the sentence. A) True B) False Answer: A
asked by Marie 
math 105
Which is higher 40 Or50
asked by katharine 
Business math/Finite
How long to the nearest year, will it take an investment to double if it is continuously compounded at 4% per year
asked by Karla 
sciene taking the G.E.D.
I study my science for The test but I am only score 39 what can I do to bring up my pooint I fell it twice.
asked by katharine 
Ethics & Justice Administration
If I am looking to support my pro capital punishment theories which of the following ethical theories would best support my stance? I must use two. Absolutism, ethical formalism, utilitarianism, hedonismstoicism, natural law, ethics of virtue, ethics of
asked by Amanda 
Question about APA citations
I'm typing a paper and I'm SO confused. My question is: Using APA stle, how do I write the PAGE NUMBERS at the end of the sentence. For example my sentence would be: The reason pigs can fly is because they have wings(Jones, 32)....THIS IS THE CORRECT WAY
asked by Layla 
math
Prove the identity cos theta  sin theta / cos theta + sin theta = sec 2 theta  tan 2 theta.
asked by angi 
math
how can I write a word problem usingg 4.23*10=42.3
asked by tiara 
math
numbers that have a tens digit greater than 5. Please chose the numbers 44 75 21 16 93 67 88 82 6 90 77 34 92 42
asked by lana 
math
what is the answer to 8,580 words in 2 h 45 min in unit rates for 7th grade
asked by annia 
Chemistry
I am not sure if I calculated the exact molarity of the potassium permanganate. I multiplied the molarity of the potassium permanganate by the liters of potassium permanganate used in the titration and divided it by the total liters of solution. I don't
asked by Zach 
Math
I need help figuring out the unit rate for $5/3. Please help, :D
asked by Sarah 
English
What three words create assonance in the stanza: "One day a girl went walking And stepped into a store; She bought a pound of sausages Then set them on the floor."? Based on what assonance means and is used for... I'm guessing it's the words 'bought',
asked by Lee 
Precalc
1. 1/3log base 8 of (x+1)=2log base 8 of 3(2/3)log base 8 of (x+1) 2. 2^x+8 times 2^=x all over 2 = 3 3. if log base a of 3= x and log base a of 2 = y, find each of thefollowing in terms of x and y log base a (18a^3) thanks!!
asked by Rebekah 
Chemistry
I am not sure if I calculated the exact molarity of the potassium permanganate. I multiplied the molarity of the potassium permanganate by the liters of potassium permanganate used in the titration and divided it by the total liters of solution. I don't
asked by Zach 
Algebra 8th grade.
The coordinates of quadrilateral VWXY are given below. Find the coordinates of its image after a dilation with the given scale factor. V(6, 2), W(–2, 4), X(–3, –2), Y(3, –5), scale factor of 2 Please help!!!!
asked by April :) 
Math
Two cards are drawn in succession without replacement from a standard deck of 52 cards. What is the probability that the first card is a heart given that the second card is a diamond? (Round your answer to three decimal places.)
asked by Chandler 
math
numbers that have a tens digit greater than 5. Please help me to chose the correct numbers out of this choices 44 75 21 16 93 67 88 82 6 90 77 34 92 42
asked by lana 
algebra
Completely factor the following expressions. 1. 256z^24192z^2+3 2. 2a^2c^314bc^3+32c^3d^2 3. 35g^2+6g9 4. 3j^351j^2+210j
asked by Janet 
Algebra2
Help? Write an equation for the line in point/slope form and slope/intercept form that has the given condition. 4. Slope = 3/2 and passes through the origin. 5. xintercept = 4 and yintercept = 3
asked by Victoria 
Business Research Management
How might you use different types of research (focus groups, observation, survey, and experiment) to forecast market reaction to a new kind of disposable baby diaper?
asked by Tava Mitchell 
Algebra2
Can these get checked. Find the slope of the straight line that passes through the given points or state that the slope is undefined. Then indicate if the line through the points rises (left to right), falls (left to right), is horizontal, or is vertical.
asked by Victoria 
earth space
What man made or natural features can interfere with the weather radar?
asked by jay 
Physics
Part A: A cardinal (Richmondena cardinalis) of mass 4.50×10^−2 kg and a baseball of mass 0.142 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude p(c) of momentum to the magnitude p(b) of the baseball's momentum? Part B: A
asked by M 
Physics
A car is traveling at 10 m/s. By what factor does the car's kinetic energy increase if its speed is doubled to 20 m/s?
asked by M 
Physics
A 17kg child slides down a 2.7m high playground slide. She starts from rest, and her speed at the bottom is 1.8 m/s. What is the change in the thermal energy of the slide and the seat of her pants?
asked by M 
algebra
To make pancakes, you need 2 cups of water for every 3 cups of flour. Write an equivalent ratio to find how much water you will need with 9 cups of flour.
asked by Anonymous 
math
i am less than 200 the sum of my digits is 18 i have 3 digits i am an even number what am i. HELP ME PLEASE THANK YOU ABBIGAIL
asked by abbigail 
math
56345
asked by Anonymous 
physics
A 75 particle is moving to the left at 29 . How much work must be done on the particle to cause it to move to the right at 46 ?
asked by Anonymous 
colors
what color is a pig and strawberry ice cream?
asked by Anonymous 
Work
A 75kg particle is moving to the left at 29m/s . How much work must be done on the particle to cause it to move to the right at 46m/s ?
asked by Anonymous 
Calculus
Find the maximum volume of a cylindrical tin that has a total surface area of 600pi cm^2.
asked by Sarah 
chemistry
Please help with the products: NaHCO3+H2SiF6= ????
asked by Victoria 
Calculus
Find the derivative of y = x^x
asked by Sarah 
accounting
if kennedy has net income of $1,600 and then liquidates, what amount of cash will the creditors receive? what amount of cash will the investors receive?: .
asked by quita 
principle of accounting
if kennedy has net income of $1,600 and then liquidates, what amount of cash will the creditors receive? what amount of cash will the investors receive?:
asked by quita 
statistics
. A certain researcher thinks that the proportion of women who say that female bosses are harshly critical is greater than the proportion of men. In a random sample of 200 women, 27% said that female bosses are harshly critical. In a random sample of 220
asked by Alexandra 
science
PLEASE HELP I NEED A GOOD SCIENCE FAIR PROJECT. PLEASE HELP THANK YOU JUSTIN
asked by justin 
french
What does "Bienvenue conjoint, votre banane cre've les yeux." in french?
asked by Anonymous 
chem
For the following equilibrium system, which of the changes will form more CaCO3 (more moles CaCO3)? CO2 + Ca(OH)2=CaCO3 +H2O delta H =113kJ Write and explain if amount CaCO3 decrease, no change or increase with regards to the following situations: a)
asked by Akira12 
4th Math
can u help me find the input and output?Input numbers are 3,5,9 and output numbers are 12,15,30,33 and how u got the answers
asked by Sally 
Grammar
You form the possessive of all singular words with apostrophe “s.” A) True B) False Answer is A
asked by Marie 
physics
A race car completes the final lap of a race on a 2kilometer circular track. At the start of the lap, it crosses the line at 60 meters/second. It completes the lap 28.57 seconds later, crossing the line at 85 meters/second. Calculate the displacement and
asked by alejandra aguinaga 
Grammar
Select the correctly punctuated sentence (both own the house): A) My mother and father’s house is painted gray. B) My mother’s and father house is painted gray. C) My mother’s and father's house is painted gray. D) My mother and father house is
asked by Marie 
Grammar
Select the correctly punctuated lab tests: A) cbc’s or CBCs B) cbcs or CBC’s C) cbc’s or CBC’s D) cbcs or CBCs I answered C
asked by Marie 
English
I am trying to decide if the infinitive phrase is used as a noun an adjective or an adverb. To have a balanced diet, keep the food triangle in mind. Is this an adverb that describes how to keep the food? What about this one? Fifty years ago, people didn't
asked by Kelley 
Algebra2
problems 8  11: Give the slope and yintercept of the given line. 1. 2x3y=6 2. y=2x 3. y=3
asked by amy 
Algebra2
Give the slope and yintercept of the given line 1. x+2=0
asked by amy 
Algebra II
How would you go about doing this problem? I've tried and with the answer given I still can't figure it out. If anyone could explain it would be greatly appreciated! (((2x)^2 2x)^2 2x)^2
asked by Tim 
Algebra2
Find the slope of the line that is a) parallel and b) perpendicular to the given line. 1. x= 8 2. y=10
asked by Joanaa 
Grammar
Select the correctly punctuated sentence: A) The black car is her’s, and the white car is theirs. B) The black car is hers, and the white car is their’s. C) The black car is her’s, and the white car is their’s. D) The black car is hers, and the
asked by Marie 
Religion
why should religion and politics be kept separate?
asked by Anonymous 
religion
What is the role of the church in relation to media today? How does media affect people morally and ethically? please help
asked by Ted 
chemistry
Sodium24, a betaemitter used in diagnosing circulation problems, has a halflife of 15 hours.Write the balanced nuclear equation for this emission.
asked by Anonymous 
Algebra2
Find the center and radius of the given circle. 1. x^2 + y^2 + 10y + 21 = 0
asked by Ana 
Math
A spinner has numbers 116 on it. Probability of 6? 1/16 Probability not 6 15/16 Probability even number 8/16 Probability multiple of 3 5/16? Probability not a multiple of 3 11/16?
asked by Jerald 
math
an empty trailer has a mass of 850kg when the trailer carries a load its mass is 1.4t what is the mas of the load?
asked by emiy 
Finance
We are considering the introduction of a new product. Currently we are in the 34% tax bracket with a 15% discount rate. This project is expected to last five years and then, because this is somewhat of a fad project, it will be terminated. The following
asked by Anonymous 
algebra
Use factoring and the zeroproduct property to solve the following problems. 1. z(z1)(z+3)=0 2. x^2x10=2 3. 4a^211a+6=0
asked by Janice 
science
can you please tell me which catergory these belong in chemical or physical property? 1. arrangement of particles have changed 2. absorb or release. energy(endothermic/exothermic reactions) 3. change in appearance only. 4. cant be undone. 5. size and shape
asked by kimberly 
accounting
marcum company was started in 2012 when issued a note to borrow $6,200 cash. write an accounting equation and record the effects of the borrowing transaction under the appropriate general ledger accounts heading.
asked by quita 
physics
An ore car of mass 37000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 28 m lower vertically, is a horizontally situated spring with constant 2.8 × 10 5 N/m. The acceleration of gravity is 9.8 m/s 2 . Ignore
asked by mia 
physics
In an arcade game a 0.135 kg disk is shot across a frictionless horizontal surface by compressing it against a spring and releasing it. If the spring has a spring constant of 155 N/m and is compressed from its equilibrium position by 7 cm, ﬁnd the speed
asked by physics 
Physics
An object is placed 8 cm in front of a convex lens of focal length 6 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.
asked by Sam 
human services
How does a human services worker integrate the use of mediation, or third party neutrality, when he or she also serves as an advocate for the client and is an employee of the agency?
asked by kika 
Physics
An object is placed 5 cm in front of a concave lens of focal length 7 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.
asked by Darrel 
Physics
An object is placed 10 cm in front of a convex mirror of focal length 4 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.
asked by Mike 
Proportions
To convert a temperature in degrees Celsius to degrees Fahrenheit, multiply the Celsius temperature by 9/5 and then add 32 degrees. Is a temperature in degrees Celsius proportional to its equivalent temperature in degrees Fahrenheit? Explain your
asked by Toph 
Physics
An object is placed 6 cm in front of a concave lens of focal length 3 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.
asked by Hans 
physics
A bird is ﬂying with a speed of 19.0 m/s over water when it accidentally drops a 2.50 kg ﬁ!@#$%^&he acceleration of gravity is 9.81 m/s^2 If the altitude of the bird is 9.00 m and air resistance is disregarded, what is the speed of the ﬁsh when it
asked by kyle 
Grammar
Select the correct statement or statements: A) Commas and periods always go outside the ending quotation mark. B) Semicolons and colons always go inside the ending quotation mark. C) Question marks and exclamation points go inside the ending quotation mark
asked by Marie 
Grammar
The first letter of a sentence is not always capitalized. A) True B) False Answer B In a numbered list in outline form, the first letter of each item on the list is always capitalized. A) True B) False Answer A
asked by Marie 
Grammar
Select the correctly capitalized and hyphenated sentence: A) The patient is a well developed, well nourished white male, in no acute distress. B) The patient is a welldeveloped, wellnourished White male, in no acute distress. C) The patient is a
asked by Marie 
maths
in a G.P the third term is 32 and the fifth term is 4 find the first term?
asked by dafe 
Calculus
ind the derivative of y= (2x^2+1)/(x3)
asked by Eliza 
calculus
Find the derivative of y=ln(ln(x))
asked by ElSarahiza 
7th grade math Ms. Sue please
Multiple Choice Use an equation to solve the problem. 1. What is 57% of 11? (1 point) 11 = 0.57 • n; 19.3 n = 57 • 11; 627 n = 0.57 • 11; 6.27 11 = 57 • n; 0.19 2. 224 is 25% of what number? (1 point) 224 • 0.25 = w; 560 224 = 0.25 • w; 896 224
asked by Delilah 
Math
If Jason tosses a cube numbered from 1 to 6 what is the Probability that he will not toss a 3? 5/6? What is the probability that Jason will toss a number less than 7? 6/6? A box contains 25 cubes If you select one cube the probability of choosing a red
asked by Jerald 
Grammar
Select the sentence in which the verb tenses agree: A) The patient was taken to the operating room, placed in the supine position, and general endotracheal anesthesia will be induced. B) The patient will be taken to the operating room, was placed in the
asked by Marie 
8th grade math
Find the interest earned on each account. $970 at 4 1/2% simple interest for 2 years. I don't know if I solved the problem correct please help: I = p x r x t = 970 x 0.42 x 2 = 814.8 I don't know what number to convert 1/4 to!
asked by Destiny 
algebra
Use factoring and the zeroproduct property to solve the following problems. 1.9r^230r+21=4
asked by Bella 
Physics
How long would a braking torque of 3.17 N·m have to act to just stop a spinning wheel that has an initial angular momentum of 6.67 kg·m2/s?
asked by Khulud 
Grammar
When a the subject of sentence has 2 or more nouns or pronouns connected by “and,” the subject is singular and requires a singular verb. A) True B) False My answer B
asked by Marie 
Calculus
Evaluate the definite integral of the transcendental function. the integral from 0 to 5 of (2^x +8)dx. I got 40+ 31/log(2)but that's wrong.
asked by Ashley 
Calculus
use mean value theorem: f(x)= 7 2^x, [0,4], c=?
asked by Ashley 
Chemistry
What is C2H5OH+3O2>CO2+H2O balanced?
asked by Bri 
Grammar
When a the subject of sentence has 2 or more nouns or pronouns connected by “or” or “nor,” the verb must agree with the noun or pronoun that appears closest to the verb in the sentence. A) True B) False I answered A
asked by Marie 
Chemistry
Balance the following equations: A. N2O>N2+O2 B. HBr>H2+Br2 C. CH4+O2>CO2+H2O
asked by Bri 
5th math
What are the next three numbers in this pattern? 2,5,3,5,4,5,_,_,_ 6,5,7? Right or wrong please explain.
asked by Anonymous 
science
i still don't know what to do for my science fair please help thank you justin
asked by Justin 
algebra
Simplify 3x to the 4th times yto the 5th over9xy toto the7th all in parenthesis
asked by cathy 
Grammar
When a sentence has a prepositional phrase, it is best to ignore the prepositional phrase when determining what the subject is. A) True B) False Answer is B
asked by Marie 
account
Assume it is Monday, May 1, the first business day of the month, and you have just been hired? Assume it is Monday, May 1, the first business day of the month, and you have just been hired? Assume it is Monday, May 1, the first business day of the month,
asked by diva 
math question
Mrs. Diaz wants new carpet for her living room.How many square yards will she need? So for that question there is a picture of a square that shows 11 yards on the bottom line and 9 yards on the right side. Also if the carpet costs $15.99 a square yard, how
asked by Anonymous 
Grammar
The indefinite pronoun “no one” is A) plural B) singular C) singular or plural depending on the context My answer is B
asked by Marie 
Math
A bag has 20 balls numbered from 1 to 20. If you guess the number of the ball you draw from the bag you win a prize. What is the probability that you will not win a prize? 19/20? If Keri draws a card from a stack the probability that it will be a 10 is
asked by Jerald 
Grammar
The indefinite pronoun “either” is A) plural B) singular C) singular or plural depending on the context My answer is C
asked by Marie 
Grammar
The indefinite pronoun “all” is A) plural B) singular C) singular or plural depending on the context My answer is A
asked by Marie 
math
use each of the digits 1, 2, 3 (one time each)and any combination of operations to create and equation where the answer is 5 please help Abbigail
asked by Abbigail 
Grammar
An antecedent is A) The first pronoun in a sentence B) The noun that a pronoun refers back to C) The pronoun that a noun refers back to my answer is B but for some reason it looks like it could be C
asked by Marie 
College Algebra
A picture frame has a total perimeter of 2 meters. The height of the frame is .62 times its width. Find the dimensions of the frame.
asked by Anonymous 
seventh grade math
if 1/2 in. = 1/3 feet then how many feet is 27 inches please someone help me ................ its drawn to scale the 27 inches
asked by molly 
Grammar
The indefinite pronoun “either” is A) plural B) singular C) singular or plural depending on the context My answer is C
asked by Marie 
Physics
A satellite is orbiting the earth at a distance of 1.00 x 10^3 km. What is its speed?
asked by Andrew 
Physics
No glass is perfectly transparent. Mainly because of reflections, about 92% of light passes through an average sheet of clear windowpane. The 8% loss is not noticed through a single sheet, but through several sheets it is apparent. How much light is
asked by Nicole 
Grammar
A nominative pronoun (Select all that apply) A) Can be used as the subject of a sentence B) Can be used as the predicate of a sentence C) Can be “I,” “you,” “he,” “she,” “it,” “we,” “they,” “who” D) Can be “me,”
asked by Marie 
Grammar
Select the correct sentence: A) She is younger than he and I. B) She is younger than he and me. C) She is younger than him and I. D) She is younger than him and me. My answer A I feel like C could be the right one also
asked by Marie 
Physics
What happens after an elastic collision between a hydrogen atom at rest and a helium atom moving 150 m/s? Which direction will the particle move after the collision? Which particle will have a higher speed after the collision? What happens when a neutron
asked by Mina 
Grammar
Select the correct sentence: A) One of the bed pans had been moved from its original location. B) One of the bed pans had been moved from it’s original location. I answered A
asked by Marie 
pre algebra
solve the equation step by step.list each step along with the property you used during that step. 5 x 1 x 11 x 4
asked by vanessa 
Geometry
In triangle EFG, M
asked by Amanda 
pre algebra
what type of measurement would you use to describe the amount of water a pot can hold?
asked by vanessa 
math
we make 1 square with 4 matches, 2 squares with 7 matches and 3 squares with 10 matches.How many squares canwe make with 100 matches ?
asked by WAN 
Chemistry
You have a single crystal of 100% pure gold. Identify which of the following defects you would expect to be present at room temperature. Free Surface Gain Boundaries Vacancies Inclusions Substitutional impurity atoms interstitial impurity atoms. Thank you.
asked by Cronus 
math
what is the next number in the sequence 2,3,7,16,32,______ .
asked by charlie 
Grammar
Select the correct sentence: A) Whose life is it? B) Who’s life is it? My answer is A
asked by Marie 
Grammar
Select the correct sentence: A) For who did you vote? B) For whom did you vote? My answer is B
asked by Marie 
Grammar
42. Select the correct sentence: A) They, theirselves, had a happy holiday celebration. B) They, themselves, had a happy holiday celebration. I answered B
asked by Marie 
Physics:Wave Motion
A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker
asked by RajuPhys 
math
these are GLOOPS. X 8 T A U these are not GLOOPS. B 7 D 2 S which of these are GLOOPS? H 5 W 3 E I Q.
asked by wan 
Algebra
The perimeter of Greg's rectangular deck is 170 feet. The length of the deck is four times the width. What is the dimensions of the deck?
asked by Mitch 
Chemistry
according to the bohr model of the hydrogen atom, what is the closest an electron can get to the nucleus? What is the farthest it can get from the nucleus? ( if the latter answer seems absurb, it might amuse you to know that it is the same value predicted
asked by Anonymous 
math
how many twelths in 3.1/2 ?
asked by CHARLIE 
Grammar
Select the correct sentence: A) Whoever arrives first has first pick of the desserts. B) Whomever arrives first has first pick of the desserts. I answered A, whomever just doesn't seem to fit.
asked by Marie 
Math
How can I get 24 out of 2.4, 7.5, 1, and 6 using +, , *, and/or /
asked by Chris 
physical education
how do you know when you are growing
asked by luis 
7th grade math Ms. Sue please
Find the percent of markup. Round to the nearest whole percent. 6. Store's Cost: $136.50 Selling Price: $184.70 (1 point) 48% 26% 14% 35%6. Store's Cost: $136.50 Selling Price: $184.70 (1 point) 48% 26% 14% 35% So you previously said 48% wasn't
asked by Destiny 
Grammar
Parallel construction in writing means using similar forms of words, phrases, or clauses in sentence patterns and structures. A) True B) False my answer is A
asked by Marie 
physics
An archer pulls her bow string back 0.370 m by exerting a force that increases uniformly from zero to 225 N. What is the equivalent spring constant of the bow?
asked by emily 
Grammar
he indefinite pronoun “few” is A) plural B) singular C) singular or plural depending on the context My answer is A
asked by Marie 
us history
I have an AP US History test tomorrow and need to make a study guide. One of the words/phrases is The Virtuous Republic. I cannot find a definition for U.S. History what The Virtuous Republic is. Thanks!
asked by Fort 
Language Art
My grandfather is the friendliest man I know. What does friendliest mean? A) Most freindly B) Always friendly or C) More friendly
asked by Anonymous 
Physics
An aluminum wire with mass/unit length of p = 5*10^4 kg/m lies on the ground, running eastwest. The wire feels the earth's magnetic field, which has magnitude B = 5*10^5 T. Assume the wire is in Columbia, where the Earth's magnetic field runs due north,
asked by Huy Nguyen 
math excel
an antelope ran 237 feet in 3 seconds. if the antelope continued to run at the same rate, how many seconds would it take him to run 790 feet
asked by sydney 
Algebra
Find the equation of the line and write your answer in the slopeintercept form. 1. Has a yintercept of 5 and a slope of 2. Has a slope of 5 and a yintercept of 2/3. 3. Has a slope of 3 and contains (4,9). 4. Has a slope of 4/9 and contains (0,2) 5.
asked by Mitch 
math
The demand function for a certain brand of CD is given by the following equation where p is the wholesale unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. P=0.01X^20.1X+6 Determine the consumers' surplus if
asked by Ashton 
Chemistry
The binding energy of electrons in a metal is 194 kJ/mol. Find the threshold frequency of the metal.  The heat of fusion of ice is 6.00 kJ/mol. Find the number of photons of wavelength = 6.78×10^−6 m that must be absorbed to melt 6.80 g
asked by James 
College Physics 1
A mass is oscillating on a spring with a period of 4.60s. At t=0s the mass has zero speed is at x=8.30cm. What is the value of t the first time after t=0s that the mass is at x=4.15 cm?
asked by Erin 
algebra
Really need help with one problem. The table shows the annual consumption of cheese per person in the United States for selected years in the 19th century. What cubic model best fits this data? Year Pounds Consumption 1915 4.156 1922 4.857 1946 7.16 1991
asked by lee 
Algebra
In the following problem, the digits 09 have been replaced with letters. Can you reconstruct the original multiplication problem by identifying what digit each letter represents? TEA (times)x_TEA_ SEA TNNA (add)t_TEA_ (ans.) CHINA
asked by Mitch 
chemestry
what is the charge on an ion with 25 protons and 29 electrons?
asked by Anonymous 
CHEMISTRY
Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may
asked by sabrina: Please help 
chemestry
what is the chemical formula for maganese(II)iodine?
asked by Anonymous 
CHEMISTRY
Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L1 CH3CH2NH2 (aq) is titrated with 0.150 mol L1 HI(aq) solution at 298 K. (1a) Write a balanced chemical equation for the neutralization
asked by sabrina: Please help 
chemestry
what is the name of BCl3
asked by Anonymous 
English
Could you help me rephrase this sentence? "Understanding the cause for Bartleby's reason to be nonsocial introvert and to offer polite refusals when asked to do something would suggest whether he deserves sympathy or disdain."
asked by Mark 
CIVICS PLEASE!!!!!
How did frozen orange juice concentrate revolutionize history? (Please if you give me an answer or a link, do not have it be based on Orange juice I need FROZEN ORANGE JUICE CONCENTRATE) Thanks!
asked by Kara Cunningham 
physics
A 53.6 kg circus performer bobs up and down at the end of a long elastic rope at a rate of once every 2.80 s. The elastic rope obeys Hooke's law. Find how much the rope is extended beyond its unloaded length when the performer hangs at rest. ** I think Im
asked by emily 
math
If v = volume then what is the answer to v=6x2x5. My paper says 100cm3 but is that right?
asked by Pam 
Physics
A race car has a mass of 714 kg. It accelerates uniformly from rest, and travels 55 m in 2.95 s. What is the acceleration of the car? And, what is the net force acting on the car?
asked by Molly 
Physics
A 16 kg box slides across the floor with an initial velocity of +7.8 m/s. It comes to a stop after sliding +14.6 m. How much friction was present?
asked by Molly 
Physics
Tigger jumps into the sandpit. As this 13 kg animal jumps up, his initial velocity is 6 m/s with an angle of 26 degrees. As Tigger lands into the sandpit, how much work is done by the sand to stop him? Answer in units of Joules
asked by Rebecca 
ALG2! WORD PROBLEM! PLZ HELP!!
A family of 5 comes to the amusement park. There are two adults and three children (under the age of 12). They qualify for a special family rate of $174.45. The clerk tells them that a child's ticket always costs $11 less than an adult's ticket. How much
asked by tyneisha 
Geometry
Rhombus, rectangle, and squares
asked by Leslie 
English
Could you help me rephrase this sentence? "Understanding the cause for Bartleby's reason to be nonsocial introvert and to offer polite refusals when asked to do something would suggest whether he deserves sympathy or disdain."
asked by Mark 
ALG2! WORD PROBLEM! PLZ HELP!!
A business wants to give each of its employees a free ticket to the amusement park and has budgeted $1200 for tickets. 1. Write and solve an inequality to find the maximum number of 1day, adult tickets that can be bought. When you round your answer,
asked by tyneisha 
science
A 2.24 kg mass on a frictionless horizontal track is attached to the end of a horizontal spring whose force constant is 4.45 N/m. The mass is displaced 3.06 m to the right from its equilibrium position and then released, which initiates simple harmonic
asked by emily 
Physics
A 2.24 kg mass on a frictionless horizontal track is attached to the end of a horizontal spring whose force constant is 4.45 N/m. The mass is displaced 3.06 m to the right from its equilibrium position and then released, which initiates simple harmonic
asked by Emily 
math
Write to number sentences using the to numbers 7,56,and 8 then use the same numbers to show the division way label each number with its special math name
asked by Quron Muhammad 
CHEMISTRY
An equilibrium mixture of the following reaction was found to have = 0.0325 at 1200 degrees C. What is the concentration of I? I2(g)2I (g) Keq=1.3×10−2 at 1200
asked by Don 
Precalc
An investment of $37,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned 8% interest, the second 6%, and the the third 9%. Total interest from the investments was
asked by Kai 
Chemistry
Metals yield at a stress much lower than those calculated on the basis of their bond strength alone. This is explained by the presence of defects. Identify the principal defects responsible for this observation.
asked by techman 
Chemistry
You have a single crystal of 100% pure gold. Identify which of the following defects you would expect to be present at room temperature.
asked by techman 
math
What is 43 over 15
asked by Olivia 
Precal
Two lookout towers are situated on mountain tops A and B, 4 mi from each other. A helicopter firefighting team is located in a valley at point C, 3 mi from A and 2 mi from B. Using the line between A and B as a reference, a lookout spots a fire at an angle
asked by Tracey 
English
"Understanding the cause for Bartleby's reason to be an introvert and to offer polite refusals when asked to do something would suggest he deserves either sympathy or disdain." Thank You Ms. Sue, That was my thesis for a paper and I need to reword it,
asked by Mark 
3 grade grammar
Is the grammar correct not sure if there should be an apostrophe after the s in dads Mother planned a surprise party for Dads birthday.
asked by Daniel mom 
Physics Quesion
A .140 kg baseball is thrown with a velocity of 41.4 m/s. it is struck with an average force of 5000N, which results in a velocity of 37 m/s in the opposite direction. How long were the bat and ball in contact?
asked by Mike 
Calculus 2
Calculate c(sub0), c(sub1), c(sub2), c(sub3), and c(sub4) for the power series the sum from n=0 to infinity of c(subn)x^n that represents f(x)=tanx. Use the first two nonzero terms of the series to approximate the tangent of 1/4 radian. Compare your
asked by Heather 
English  writing
Is this a runon sentence? Though I do believe we need to be useful, honorable, and compassionate to live a successful life, I would argue that the purpose of life is to be happy, but only through the aforementioned requirements can we achieve happiness,
asked by Jamie 
economics
The actual change in the money supply equals
asked by jagirl 
MRP Operations Managment
On Hand is the quantity of the item that is on hand at the beginning of period 1. Lead time is the amount of time from when an order is placed to when it arrives. See page 278. Lot Size  LFL means lotforlot, we order material only as it is needed. See
asked by JJ 
Algebra
A golf resort offers the following two special packages. The Par 3 Package includes four nights of lodging and three rounds of golf for $443.50. The Par 5 Package includes seven night of lodging and five rounds of golf for $765.50. The rate for each night
asked by Amy 
algebra
a farmer grows corn, tomatoes, and sunflowers on a 320 acre farm. this year the farmer wants to plant twice as many acres of tomatoes as sunflowers. The farmer also wants to plant 40 more acres of corn than of tomatoes. How many acres of of each crop
asked by Sam 
English
"Understanding the cause for Bartleby's reason to be an introvert and to offer polite refusals when asked to do something would suggest he deserves either sympathy or disdain." I need to reword the whole thesis using different words but meaning the same
asked by Mark 
Algebra:'(
I understand how to multiply a polynomial by a monomial for example 6pq(3p^2+4q)= 18p^3q+24pq^2 but i don't know how to do problems like this 5(2s1)+3=3(3s+2) HELP PLEASE!!
asked by EmilyMay 
Geometry
A door is 6ft 6in high and 36 in wide. Can a thin piece of of plywood 7ft wide be carried through the door?
asked by Anonymous 
Chem
How do you identify which reagent is in excess when you are given just an equation and no masses
asked by b. 
math
Determine the comparable interest rate for a $50,000 loan when the quoted information is 10.6% + 0.5 pt + $400. (Round your answer to two decimal places.)
asked by jacque 
English
Thank you very much, Ms. Sue
asked by Mark 
Math
75= 5(3m3)3m. Can someone explained this problem to me and how to solve it. I tried doing it and had several answers
asked by Leslie 
algebra 1
Two vans leave town at the same time going in opposite directions. one travels at 60 miles/hr. the second travels 30 miles/hr. in how many hours will they be 180 miles apart?
asked by lisa 
precalc help !!!!!!!
if someone could show me how to solve this problem 1) cos(345°)
asked by Haley 
english
inthe book bookseller of kabul which character displayed bravery and stuck tontheir convictions
asked by bmo 
MATH
HOW MANY SEVENDIGIT NUMBERS LESS THAN 1,048,000 CAN BE MADE USING THE DIGITS 0,1,4,6,7,8,AND 9? THINK: MAKE A LIST OF POSSIBLE WAYS TO REPRESENT YOUR SEVENDIGIT NUMBERS
asked by lanz 
Calculus 2
The function ln(x1) can be expressed as a Taylor Series of the form sum of c(subn)(x2)^n. Calculate the formlua for c(subn).
asked by Heather 
Math
how do you solve (17  L)^2
asked by Jessica 
math
5/x^24+2/x^24x+43/x^2x6
asked by david 
Chemistry
The most abundant isotope of uranium,238U , does not undergo fission. In a breeder reactor, however, a 238U atom captures a neutron and emits two beta particles to make a fissionable isotope of plutonium, which can then be used as fuel in a nuclear
asked by Anonymous 
precalculus
how do you solve problems as such: if a person drops a water balloon off the rooftop of a 36 foot building, the height of the water balloon is give by the equation h=16t^2+36, where t is in seconds. when will the water balloon hit the ground?
asked by McKenna 
History
To what extent was the French Revolution caused by new political ideas and influences?
asked by Cara 
Math
Factoring / solve for x 5.50x = 0.02x^3 + 5x
asked by Steph 
English
In class today we went over subordination an the different forms, but I'm still confused about subordination when it comes to the absolute and infinitive forms. How do you subordinate in these forms?
asked by Josh 
Chemistry
What happens when NaCl(aq) and AgNO2(aq) are mixed? Also, will the mass increase, decrease, or stay the same after the mixing? Why? Thanks!
asked by Sophia 
precalculus
tan(x)3cot(x)=0 solve.
asked by kay 
Chemistry
Equal masses of P and Cl react according to the following equation: 2P + 3Cl2 > 2PCl3 Identify which reagent is in excess. Calculate the percent that will remain at the end of the reaction.
asked by L. 
precalculus
the function f(x)= square root sign 10x+20, x>=20/10 is a one to one function find its inverse
asked by McKenna 
pre algreaba
Justin wants to use 188 ft of fencing to fence off the greatest possible rectangular area for a garden. What dimensions should he use? What will be the area of the garden?
asked by Anonymous 
Algebra
Two joggers are running around an oval track in opposite directions. One jogger runs around the track in 56 seconds. They meet every 24 seconds. How many seconds does it take the second jogger to run around the track?
asked by Britney 
MATH OMG HELP PLEEESE
Sarsh is currently at 83.7% in math. She has just finished a worksheet that is out of 30. She got 30/30 which is full marks. What percent is she at now in math? I HAVE NO IDEA!!!!!!
asked by WINNIE 
science
How many grams of citric acid is needed to titrate 20ml NaOH 0.05M their mole ratio is 1:3 respectively
asked by Janet 
trigonometry
2. Choose the point that lies on the curve r = 2 – 3 sin θ. A. (5, 3π/2) B. (–2, π) C. (1, π/2) D. (5, π/2 3. Which of the following is not an approximate solution of x5 – 1 = 0? A. 0.3090 – 0.9511i B. 0.8090 + 0.5878i C. 0.3090 + 0.9511i D.
asked by Erick 
Research
I would like to have your input on the following questions. (1) Why is students study habits worth a study for a research proposal? (2) For the following research topic, describe a quantitative and a qualitatitive study focused on the topic by explaining
asked by Michael 
trigonometry
1. What is the area of triangle ABC if a = 47.0°, β = 57.8°, and a = 10.2 cm? A. 58.2 cm2 B. 43.5 cm2 C. 38.4 cm2 D. 33.3 cm2 2. Given triangle ABC with β = 41°, g = 14°, and a = 5.0, find the value of c. A. 6.2 B. 4.0 C. 1.5 D. 17 3. Resolve the
asked by Erick 
physics, please help!
(a) Find the current in each resistor of the circuit shown in the figure byusing the rules for resistors in series and parallel. (b) Write three independent equations for the three currents using Kirchhoff’s laws: one with the node rule; a second using
asked by Amber 
math
if james spends 5/6 of his weekly allowance seeing a movie how many dollars does he have left? if a movie ticket cost 7.50 what is james weekly allowance?
asked by Morgan 
physics
5. A bomber is flying at a height of 9 km at 800 km/h. How far in front of the target should he drop his bombs? show formulas*
asked by brian 
math
if james spends 5/6 of his weekly allowance seeing a movie how many dollars of his allowance do he have left
asked by Morgan 
chem
Predict the direction of the net reaction in each of the following system, as a result of increasing the temperature. Delta H is an indicator or whether the reaction releases heat delta H(), or heat is absorb delta H(+). Write where the direction shifts.
asked by Angel Locsin 
math
if james spends 5/6 of his weekly allowance seeing a movie how many dollars of his allowance do he have left
asked by Morgan 
physics
Two billiard balls of equal mass move at right angles and meet at the origin of an xy coordinate system. Ball A is moving upward along the y axis at v_A = 2.0m/s , and ball B is moving to the right along the x axis with speed v_B = 5.0m/s . After the
asked by nammilee 
CHEMISTRY
Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L1 CH3CH2NH2 (aq) is titrated with 0.150 mol L1 HI(aq) solution at 298 K. (1a) Write a balanced chemical equation for the neutralization
asked by sabrina: Please help 
chem
Using LeChatelier's principle, predict the direction of the net reaction in each of the following system as a result of decreasing the volume of the chamber for the reaction mixture. Where does the direction shifts? a.) N2(g)+ O2(g)= 2NO(g) b.)
asked by Angel Locsin 
CHEMISTRY
Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may
asked by sabrina: Please help 
social studies
Sela is a securely attached baby. Sela, therefore, is likely to successfully resolve the crisis of basic trust versus basic mistrust. India is insecurely attached, and is less likely to resolve the trust versus mistrust crisis successfully. In the long
asked by phia 
physics
A large block P executes horizontal simple harmonic motion as it slides across a frictionless surface with a frequency f = 1.7 Hz. Block B rests on it, as shown in the figure, and the coefficient of static friction between the two is ìs=0.64. (b) What is
asked by Anonymous 
trig
angles of elevation to an airplane are measured from the top and the base of a building that is 40 m tall. The angle from the top of the building is 31°, and the angle from the base of the building is 40°. Find the altitude of the airplane. (Round your
asked by Barb 
chemistry
What is the minimum volume of 2.00 M HCl necessary to neutralize completely the hydroxide in 800.0 mL of 0.3 M NaOH?
asked by carol 
Calculus 2
The following function has a series of the form the sum from n=0 to infinity of c(subn)x^n. Calculate the coefficients c(subn) and express the power series in summation notation. f(x)=(pi*x)/(pi*x+1) Thank you so much for your help!!!!
asked by Heather 
social studies
Baby Lilith’s big sister has taken Lilith’s new teddy bear from her and has hidden it in the closet. Baby Lilith will look for the teddy bear if she has developed: object permanence. visual preference. crossmodal transfer. causality. My choice is B
asked by phia 
Physics
Two different simple harmonic oscillators have the same natural frequency (f=5.60 Hz) when they are on the surface of the Earth. The first oscillator is a pendulum, the second is a vertical spring and mass. If both systems are moved to the surface of the
asked by Emily