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Questions Asked on November 5, 2010

3. A person exerts a force of 55 N on the end of a door 74 cm wide. What is the magnitude of the torque if the force is exerted
1. 1 answer
2. asked by Bobby
3. 11,924 views
A dentist's drill starts from rest. After 3.20 s of constant angular acceleration it turns at a rate of 2.7 104 rev/min.(a) Find
1. 5 answers
2. asked by Sam
3. 10,140 views
In the REDOX reaction in basic solutionZn-->Zn(OH)4+H2 I know that the first half reaction is 4H20+Zn-->Zn(OH)4 +4H+e but the
1. 6 answers
2. asked by george
3. 9,628 views
A golfer, driving a golf ball off the tee, gives the ball a velocity of +40 m/s. The mass of the ball is 0.045 kg, and the
1. 3 answers
2. asked by jonathan
3. 3,985 views
water has a molar mass weight of 18 grams that's 18 grams per mole you drink a 2 liter bottle of water everyday and you are such
1. 2 answers
2. asked by Anonymous
3. 3,983 views
A square-based, box-shaped shipping crate is designed to have a volume of 16ft^3. The material used to make the base costs twice
1. 2 answers
2. asked by Bob
3. 3,548 views
It requires 945.0 kJ/mol to break N2 molecules into atoms. Calculate the maximum wavelength of light that will still break these
1. 2 answers
2. asked by alexis
3. 3,100 views
One way of separating oxygen isotopes is by gaseous diffusion of carbon monoxide. The gaseous diffusion process behaves like an
1. 1 answer
2. asked by Anonymous
3. 2,573 views
A block of mass M resting on a 21.5° slope is shown. The block has coefficients of friction μs=0.605 and μk=0.344 with the
1. 2 answers
2. asked by Bella
3. 2,526 views
2Al + 3CuSO4 ! Al2(SO4)3 + 3CuWhat is the maximum amount of Cu (63.5 g/mol) that could be produced by reacting 20.0 grams of Al
1. 2 answers
2. asked by MAGGIE
3. 2,511 views
The maximum lift force on a bat is proportional to the square of its flying speed v. For the hoary bat (Lasiurus cinereus), the
1. 1 answer
2. asked by Taylor
3. 2,504 views
After fixing a flat tire on a bicycle you give the wheel a spin.(a) If its initial angular speed was 5.41 rad/s and it rotated
1. 2 answers
2. asked by aok
3. 2,286 views
A 30 kg child slides down a playground slide at a constant speed. The slide has a height of 3.8m and is 7.8m long. using energy
1. 2 answers
2. asked by andrea
3. 2,272 views
find the sum of the first 8th term of the Geometric progression, 1,3,9,27
1. 1 answer
2. asked by Ali
3. 2,228 views
A novice skier, starting from rest, slides down a frictionless 31.0° incline whose vertical height is 123 m. How fast is she
1. 2 answers
2. asked by memo
3. 2,156 views
blank is used to dissipate the error brought about by impurities. What is the other reason of using blank in Mohr method?
1. 1 answer
2. asked by emily
3. 2,118 views
The following table gives the percentage, P, of households with a television set that also have a VCR. (Unlike the data in your
1. 1 answer
2. asked by Erika
3. 1,998 views
How many moles of solute are contained in a 150ml solution of a 0.25 M NaNO3 solution?
1. 3 answers
2. asked by Ed
3. 1,922 views
A pulley rotating in the counterclockwise direction is attached to a mass suspended from a string. The mass causes the pulley's
1. 2 answers
2. asked by aok
3. 1,912 views
Propane gas is used to heat a tank of water. If the tank contains 200 L of water, what mass of propane will be required to raise
1. 2 answers
2. asked by Ray
3. 1,894 views
Which is an effective strategy for ending an informative letter to a new client? (Points: 5)Stress that the reader is welcome to
1. 6 answers
2. asked by lisa
3. 1,808 views
If you walk at 1 m/s down the aisle of a bus that is moving at 10 m/s along the road, how fast are you moving relative to the
1. 2 answers
2. asked by Anya
3. 1,723 views
starting with an initial speed of 5.00 m/s at a height of 0.265 m, a 1.75 kg ball swings downward and strikes a 4.45 kg ball
1. 4 answers
2. asked by joseph
3. 1,652 views
MNPQ is a rhombus. The measure of angle MRQ is (13t-1) degrees, and the measure of angle PQR is (7t+4) degrees. what is the
1. 1 answer
2. asked by alex
3. 1,637 views
In its approach to an airport runway, an airplane of mass 1.24 x 10^5 kg has a velocity of 75.5 m/s [11.1 degrees below the
1. 1 answer
2. asked by Jordge
3. 1,614 views
A sealed cubical container 26.0 cm on a side contains three times Avogadro's number of molecules at a temperature of 15.0°C.
1. 1 answer
2. asked by john
3. 1,497 views
A square graphed on the coordinate plane has a diagonal with endpoints E (2,3) and F (0,-3) what are the coordinates of the
1. 2 answers
2. asked by alex
3. 1,487 views
A rotating wheel requires 9.00 s to rotate 29.0 revolutions. Its angular velocity at the end of the 9.00 s interval is 98.0
1. 1 answer
2. asked by Annie
3. 1,478 views
Classify the model as exponential growth or exponential decay. Identify the growth or decay factor and the percent increase or
1. 3 answers
2. asked by Nikki
3. 1,468 views
The clothesline is under tension when you hang from it. Why is the tension greater when the clothesline is strung horizontally
1. 5 answers
2. asked by Kelsea
3. 1,463 views
a set of pulleys is used to lift a piano weighing 1,000 newtons. the piano is lifted 3 meters in 60 secounda. how much power is
1. 1 answer
2. asked by safiyyah
3. 1,438 views
A rectangle is constructed with its base on the diameter of a semicircle with radius 5 cm and with two vertices on the
1. 1 answer
2. asked by Bob
3. 1,432 views
The distance between goalpost, BC, is three times the distance from the top of the goalpost to the bottom. If the perimeter of
1. 2 answers
2. asked by alex
3. 1,428 views
A bacteria culture starts with 900 bacteria and the population doubles every 4 hours. Find an expression for the number of
1. 3 answers
2. asked by Anonymous
3. 1,413 views
I'm really struggling with how to set this up:A company has 18 members on its management team,10 men and 8 women. There is a
1. 1 answer
2. asked by Samantha
3. 1,404 views
A spot of paint on a bicycle tire moves in a circular path of radius 0.27 m. When the spot has traveled a linear distance of
1. 1 answer
2. asked by aok
3. 1,401 views
This is the question I posted about two hours ago and I worked it out two ways-could you scroll down and check it, please?If I
1. 2 answers
2. asked by Joey
3. 1,345 views
A square graphed on the coordinate plane has a diagonal with endpoints E (2,3) and F (0,-3) what are the coordinates of the
1. 0 answers
2. asked by alex
3. 1,317 views
In an experiment 50 g of a metal was heated to 100oC and placed in 200 g of a liquid at 25oC. Which of the following
1. 1 answer
2. asked by Melissa
3. 1,315 views
MNPQ is a rhombus. The measure of angle MRQ is (13t-1) degrees, and the measure of angle PQR is (7t+4) degrees. what is the
1. 3 answers
2. asked by alex
3. 1,311 views
A 3kg object initially moving in the positive x-direction with a velocity of +5m/s collides with and sticks to a 2kg object
1. 0 answers
2. asked by Anonymous
3. 1,265 views
1. Points Q,R,S, and T lie on a circle with center P. If the radius of the circle is 1, what is the value of PQ+PR+PS+PT?2. If
1. 2 answers
2. asked by Leslie
3. 1,232 views
A small, 300 g cart is moving at 1.90 m/s on an air track when it collides with a larger, 2.00 g cart at rest. After the
1. 1 answer
2. asked by Danielle
3. 1,225 views
i have to draw globe thetre but i have no idea how to draw.they give me some describsion:the stage was 4-5 feet high,surrounded
1. 1 answer
2. asked by anu
3. 1,221 views
The distance from B to D is approximately (x+10) feet, and the distance from A to C is approcimately (2x-5.3) feet. what is the
1. 0 answers
2. asked by alex
3. 1,201 views
A 1.7 kg otter starts from rest at the top of a muddy incline 85.3 cm long and slides down to the bottom in 0.40 s.What net
1. 1 answer
2. asked by Anonymous
3. 1,183 views
The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.030 kg and is moving along the x
1. 0 answers
2. asked by danny
3. 1,182 views
Calculate the acceleration due to the rotation of the Earth of a person in a location 22° northern geographical latitude. Use R
1. 1 answer
2. asked by Crystal
3. 1,165 views
1. Zinc is often used to calibrate calorimeters because it undergoes a very sharp phase transition from the solid to the liquid
1. 2 answers
2. asked by John
3. 1,164 views
A store that personalizes shirts chargers $20 for a shirt plus $.75 for each letter. Write an algebraic expression for the cost
1. 2 answers
2. asked by jennifer
3. 1,164 views
7.72 g of CuBr2 contains how many bromide (Br-) ions?
1. 1 answer
2. asked by Jamie
3. 1,163 views
what is the solute and solvent in a solution made from 15 mL of oxygen and 5 mL of helium?
1. 2 answers
2. asked by jan
3. 1,161 views
A spring with a force of 5.2 N/m has a relaxed length of 2.45. When a mass is attached to the end of the spring and allowed to
1. 0 answers
2. asked by Pablo
3. 1,137 views
how would i do this problem elina and teresa raced on their bikes to the library after school. they both left at 3:00 pm and
1. 1 answer
2. asked by bob
3. 1,122 views
If you hold a coin above your head while in a bus that is not moving, the coin will land at your feet when you drop it. Where
1. 1 answer
2. asked by Kelsea
3. 1,101 views
A cyclist is moving to the right at a constant speed. when he applies brakes what will happen?a -net force will be to left b-
1. 0 answers
2. asked by 7th grade
3. 1,098 views
write for multiplication/division facts using the numbers 3, 8, and 24.5.what are the seven months of the year that have 31
1. 1 answer
2. asked by jojo
3. 1,083 views
D is between C and E. CE=6x, CD=4x+8, DE=27. Find CE
1. 2 answers
2. asked by Jonathan
3. 1,082 views
Two identical metal plates with small holes are aligned a distance L=7.8 cm apart. They have a potential difference of 127
1. 0 answers
2. asked by Maree
3. 1,076 views
Whats the difference between a tale of 2 cities the book and the movie?
1. 2 answers
2. asked by mandee
3. 1,071 views
What is the molar mass of calcium acetate, Ca(C2H3O2)2?
1. 1 answer
2. asked by Becky
3. 1,061 views
If the sum of the first and the second terms of an infinite Geometric progression is equal to 3/8, and the sum of its term is
1. 0 answers
2. asked by Ali
3. 1,054 views
Consider a situation in which your car, when coasting down a straight downhill road, acquires a constant velocity.In this
1. 1 answer
2. asked by Krys
3. 1,037 views
A long jumper jumps with the initial velocity of 12.0 m/s at an angle of 20 degrees. what is the displacement of x?
1. 0 answers
2. asked by DJ
3. 1,024 views
for a sample of n = 36, find the probability of a sample mean being less than 12.2 if u = 12 and o = 0.95
1. 1 answer
2. asked by caintgetrite
3. 1,017 views
How much boiling water would you need in order to raise the bath to body temperature (about 37)? Assume that no heat is
1. 2 answers
2. asked by Bella
3. 1,017 views
How do I write 2.59 as a percent?
1. 3 answers
2. asked by liiy
3. 1,011 views
On February 28th, the company adjusted for supplies used during the month, At February 28th, supplies on hand had a cost of
1. 0 answers
2. asked by Thara
3. 1,001 views
what is the acceleration of a boy on a skateboard if the unbalanced forward force on the boy is 15 N? The total mass of the boy
1. 1 answer
2. asked by Fred
3. 1,000 views
for population in billions, where t is years since 1990:N(t) = 41/1+11 e^−0.1 t (b) According to this model, when will the
1. 0 answers
2. asked by Erika
3. 988 views
What is the molarity of OH- in a 5.78×10-3 M C6H5CO2Na solution that hydrolyzes according to the equation.C6H5CO2-(aq) + H2O(l)
1. 1 answer
2. asked by carly
3. 983 views
A new test for detecting a disease has been developed. Medical trials show that 92% o patients with the disease show a positive
1. 0 answers
2. asked by jj re
3. 982 views
which of the following words cannot use the suffix -ive?reveal- decis- conclus- impress-
1. 2 answers
2. asked by David
3. 980 views
Gravity on the surface of the moon is only1 6 as strong as gravity on the Earth. What is the weight of a 33 kg object on the
1. 2 answers
2. asked by RImon
3. 973 views
a computer company can sell 1000 computers if they price them at $500. The number sold will increase by 10 for every 1$ decrease
1. 2 answers
2. asked by chris
3. 971 views
Using a calculator.show 14 broken key is 1 show 2 ways
1. 3 answers
2. asked by kay
3. 970 views
A rigid tank contains 1.20 moles of an ideal gas. Determine the number of moles of gas that must be withdrawn from the tank to
1. 1 answer
2. asked by Stacy
3. 969 views
In a Geometric progression the sum of its first 4 term is equal 15, and the sum of the next term is equal to 15/16. find its
1. 1 answer
2. asked by Ali
3. 968 views
Explain to me how to get information on the computer about higher pair notes
1. 0 answers
2. asked by Toni
3. 968 views
There is a vertical tension at the top of a 4 m long ladder holding it at an incline. The bottom of the ladder is touching the
1. 0 answers
2. asked by Gunther
3. 963 views
A solution of C6H5CO2Na hydrolyzes according to the equation. If the [C6H5CO2H] in the solution after hydrolysis is 0.00000294
1. 1 answer
2. asked by sparkle
3. 962 views
In the cabin of a jetliner that cruises at 600 km/h, a pillow drops from an overhead rack into your lap below. Since the
1. 1 answer
2. asked by Kelsea
3. 951 views
THE MEAN PRICE OF DIGITAL CAMERAS AT AN ELECTRONIS STOR IS $224, WITH A STANDARD DEVIATION OF $8. RANDOM SAMPLES OF SIZE 36 ARE
1. 4 answers
2. asked by caintgetrite
3. 946 views
Let f be he real-valued function defined by f(x)=sin^3x+sin^3|x|(a) find f'(x) for x>0 (b) find f'(x) for x<0 (c) determine
1. 0 answers
2. asked by Mariam
3. 940 views
The area of a rectangular athletic field is represented by the expression square meters. Write an algebraic expression to
1. 1 answer
2. asked by Jordyn
3. 938 views
what is the walker circulation of normal & El nino conditions? help me
1. 0 answers
2. asked by majenta
3. 915 views
Select an industry or organization that has many occupational positions within it, such as the retail industry, the
1. 1 answer
2. asked by Anonymous
3. 903 views
What part of speech is the word surveillance in "surveillance camera"?Also what part of speech is video in "home video"? Are
1. 6 answers
2. asked by JFer
3. 903 views
At noon, ship A is 50 nautical miles due west of ship B. Ship A is sailing west at 16 knots and ship B is sailing north at 21
1. 0 answers
2. asked by Rick
3. 896 views
find the solutions of the equation that are in the interval [0,2pi)2-cos^2x=4sin^2(1/2x)
1. 1 answer
2. asked by Hayli
3. 892 views
"Roger Chillingworth's main objective is to revenge upon Dimmensdale and not redeeming himself by helping Hester." Is this a
1. 2 answers
2. asked by Nathan
3. 890 views
A long jumper jumps with the initial velocity of 12.0 m/s at an angle of 20 degrees. what is the displacement of x?
1. 1 answer
2. asked by ashley
3. 888 views
The distance from B to D is approximately (x+10) feet, and the distance from A to C is approcimately (2x-5.3) feet. what is the
1. 0 answers
2. asked by alex
3. 881 views
A rectangular block of ice 8 m on each side and 1.5 m thick floats in sea water. The density of the sea water is 1025 kg/m3. The
1. 1 answer
2. asked by Slice
3. 848 views
Johnson Alarm Systems had 800,000 of retained earnings on December 31, 2008. the company paid common dividends of 60,000 in 2008
1. 0 answers
2. asked by Anonymous
3. 845 views
A rigid tank contains 1.80 moles of an ideal gas. Determine the number of moles of gas that must be withdrawn from the tank to
1. 2 answers
2. asked by idwsh
3. 829 views
A spot of paint on a bicycle tire moves in a circular path of radius 0.27 m. When the spot has traveled a linear distance of
1. 2 answers
2. asked by aok
3. 829 views
A man weighs 1220 N on Earth. What would he weigh on Jupiter, where the free-fall acceleration is 25.9 m/s2? The acceleration of
1. 1 answer
2. asked by Dede
3. 814 views
2/9 as percentwould I dived 9 into 2? Which would become .2 repeating right? Then what???
1. 1 answer
2. asked by liiy
3. 810 views
N(t) = 650/1+649 e^−0.5 t(b) How many people will have heard the rumor after 4 hours? After 9 hours? (c) When will half the
1. 2 answers
2. asked by Erika
3. 804 views

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