# If a bowling ball hits a wall with a force of 6 N the wall exerts what force back on the bowling ball? the choices are 0N 3N 6N 12N I think its 6N

33,166 questions, page 194
1. ## science

what is force

asked by bah on July 31, 2017
2. ## Science

What is force

asked by Arun on June 25, 2017
3. ## Physics

Calculate the coulomb force on q. They are all in a straight line q1, q2,q3. Q1:1.05 micro coulombs Q2:5.51 micro coulombs Q3:-2.15 micro coulombs The distance, r1, between q1 and q2 is 20.1cm. The distance, r2, between q2 and q3 is 15.3 cm. Also,

asked by Amalia on July 9, 2013
4. ## physic

There are 2 vehicles. Vehicle 1 a ford taurus at 3400 pounds is traveling 50mph headed east. Vehicle 2 is a dodge ram truck at 6400. The truck hits the car head on and the car is pushed back 35 feet from point of impact. The truck is 90 feet from point of

asked by missi on June 6, 2013
5. ## Physics

1.) What is the acceleration of a car that increases its velocity from 0 to +14m/s in 10s? 2.) What is the acceleration of a car that maintains a constant velocity of - 14m/s for 10s? 3.) Seagulls are often observed dropping clams and other shellfish from

asked by Becka on September 18, 2014
6. ## physics

A granite column in a building is 8.50 m high and has a mass of 2.16 multiplied by 104 kg. (a) How much heat (J) is needed to increase its temperature by 10.5°C, given its specific heat is 0.200 kcal/kg·°C? (b) What is its change in length (m) if its

asked by Alice on July 24, 2013
7. ## Physics Word Problems

Could you please explain to me these problems, I don't understand them. Do 100 J of work in 50 s and your power output is? - I got 2, but not sure of the units. A bow is drawn so that it has 40 J of potential energy. When fired, the arrow will ideally have

asked by Manny on October 14, 2007
8. ## Physics

Determine the amount of work required for each of the following: a) to lower a 35kg sack of rice through a height of 3.5m b) to carry the 30kg sack of rice 10m along a corridor c)to crave the sack of rice 15m along the corridor at a constant velocity

asked by Amy on March 28, 2017
9. ## Physics- Is my work right?

A ball moving at +3.0 m/s along a table rolls off a table and lands on the ground 2.0 m away. How high was the table? h = 9.8 × (2/3)² / 2 = 2.2 m

asked by Penny on December 11, 2014
10. ## Physics

A ball moving at +3.0 m/s along a table rolls off a table and lands on the ground 2.0 m away. How high was the table?

asked by Cali on November 14, 2011
11. ## Physics

1. You apply a force of 11.8 N on a 5.1 kg object, pushing it horizontally across a surface where the coefficient of kinetic friction is 0.44. (a) Determine the frictional force acting. (b) Determine the object's acceleration. 2. A container of mass 0.5 kg

asked by Shawn on September 27, 2016
12. ## physics

You're in an airplane that flies horizontally with speed 860 km/h (240 m/s ) when an engine falls off. Neglecting air resistance, assume it takes 26 s for the engine to hit the ground. Hight of airplane is: H = 3.3 km horizontal distance that the aircraft

asked by aaron on October 12, 2018
13. ## physics

Consider an object on which the net force is a resistive force proportional to the square of its speed. For example, assume that the resistive forve acting on a speed skater is f=-km[v^2], where k is a constant and m is the skater's mass. The skater

asked by Jean on March 1, 2007
14. ## Physics

A person wants to launch a water balloon and hit the top of a tower, 50.0 meters away. The water balloon launcher is angled at 25 degrees. The water balloon leaves the launcher at 68 m/s. If the balloon hits the top of the tower, how high was the tower?

asked by Drew on January 26, 2016
15. ## Last physics help question (my thoughts given)

A 160-N child sits on a light swing and is pulled back and held with a horizontal force of 100N. The tension force of each of the two supporting ropes is: a) 60N b) 94N c) 120N d) 190N e) 260N work: weight is down, the pull is back, so the tension must act

asked by diane on December 11, 2006
16. ## Physics

A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe,

asked by Rick on February 12, 2014
17. ## physics

A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe,

asked by deanna on October 12, 2010
18. ## physics

A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe,

asked by Rachel on September 15, 2013
19. ## Physics

A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe,

asked by Rash on September 27, 2018
20. ## Physics

A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe,

asked by James on September 17, 2007
21. ## College Physics 1

A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe,

asked by Sara on September 17, 2013
22. ## Physics

A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe,

asked by Randy on February 13, 2013
23. ## physics

What are the speed and acceleration (increase/decrease or remain constant) of a ball rolling down a a) straight hill, b) concave hill c) convex hill Can someone explain why they are, not just the answers?

asked by Christine on December 9, 2015
24. ## Math

A baseball is thrown upward. The path of the baseball models the equation h= -4.9t^2 + 9.2t + 1.6, where h is height of the ball, in metres, after t seconds. How long does it take the baseball to fall to the ground? Plzzz help

asked by Paul on May 8, 2016
25. ## Physics

A baseball is projected horizontally from the top of a building with an initial speed of 15 m/s. The ball strikes the ground 25 m from the base of the building. a. How long will it be in the air? b. How tall is the building?

asked by Tsunayoshi on November 2, 2013
26. ## science

Suppose the height of the net is 0.800 m , and the court's border is 11.2 m from the bottom of the net. Use g =10 m/s2 and find the maximum speed of the horizontally moving ball clearing the net..

asked by sarah on December 16, 2015
27. ## physics

a 20 kg crate is at rest on level ground a worker begins pushing horizontally on the crate with a force 300 Newtons, but the crate does not move determine the weight of the crate in both units of newtons and units of and units of pounds, determine the

28. ## Physics

1. The problem statement, all variables and given/known data A point charge is placed at each corner of a square with side length a. The charges all have the same magnitude q. Two of the charges are positive and two are negative, as shown in the following

asked by Eddie on January 22, 2012
29. ## Science- Brady, 2 more!

#1. Which statement is true about the image below? 7 N -> |rectangle| |square| 5 N -> |square| •0 N •5 N •10 N (?CORRECT?, MY ANSWER) •25 N

asked by Mindy on March 3, 2014

I don't want someone to do this for me-I'm just totally lost and don't even know where to start-I'm totally lost on this one- the earth is surrounded by an electric field with a strenth of 100 N/C at the surface. Its electric properties are the same as a

asked by Rafaela on April 7, 2011
31. ## Managerial Economics

As vice president of sales for a rapidly growing company, you are grappling with the question of expanding the size of your direct sales force (from its current level of 60 national sales people) You are considering hiring from 5 to 10 additional

asked by Rico on April 18, 2011
32. ## Physics

An archer fires an arrow, which produces a muffled "thwok" sound after it hits a target. The archer hears the "thwok" exactly 2.6 s after firing the arrow and the average speed of the arrow is 36 m/s. Find the distance sepa­rating the archer and the

33. ## Physics

A baseball is thrown from the rood of a 27.5m tall building with an initial velocity of magnitude 16.0m/s and directed at an angle of 37 degrees above the horizontal. A) Using energy methods and ignoring air resistance, calculate the speed of the ball just

asked by Anonymous on April 9, 2013
34. ## English

We are reading the book In the Heat of the Night by John Ball and I need to complete the chapter 2 comprehension questions. I am stuck on this one: 1. Investigate the figurative nuances of the name Virgil. It is an allusion. Why is it significant? Think in

asked by Bethany on March 1, 2014
35. ## Physics

Firemen are shooting a stream of water at a burning building. A high-pressure hose shoots out the water with a speed of 21.0 m/s as it leaves the hose nozzle. Once it leaves the hose, the water moves in projectile motion. The firemen adjust the angle of

asked by Josh on September 17, 2006
36. ## English

Would you please check if I answered these correctly? a. I just bought CDs by Regina Spektor, John Legend, and Prince. b. I just bought: CDs by Regina Spektor, John Legend, and Prince. I picked B because d suffices fine for this. a. Students, who study

asked by Leesa on October 21, 2009
37. ## physical

A basketball player who is 2.0m tall is standing on the floor 10.0m from the basket,If he shoots the ball at a 40.0¤ angle witi the horizontal,at what initial speed must he throw so that it goes through the hoop without striking the backboard?The basket

asked by yenebeb on March 22, 2013
38. ## physics

a baseball was launched from 1.5 m above the ground. the ball was caught at a position 4.5m above the ground with a speed of 28m/s moving at a angle of 30 degrees below horizontal: find initial velocity - time of flight - range

asked by al on September 10, 2013
39. ## physics

C) A steel ball bearing the radius 1 cm is rolling along a table with speed 20 cm/sec when it starts to roll up an incline. How high above the table level will it rise before stopping? Ignore friction losses

asked by kwaku on December 3, 2010
40. ## physics

a baseball was launched from 1.5 m above the ground. the ball was caught at a position 4.5m above the ground with a speed of 28m/s moving at a angle of 30 degrees below horizontal: find initial velocity - time of flight - range

asked by al on September 10, 2013
41. ## physics

A street ball bearing of radius 0.50 cm is rolling along a table at 20cm/sec when it starts to roll up an incline. How high above the table level will it rise before stopping? Ignore friction losses.

asked by pakilina on November 25, 2011
42. ## Algebra

A brick is dropped from the Empire State Building at a height of 324 meters. If you neglect any type of air resistance, what is the distance in meters that the ball falls during the interval between the 8th and 9th second?

asked by Mary on September 21, 2008
43. ## Physics

A ball of mass 1.74 kg is dropped from a height y1 = 1.47 m and then bounces back up to a height of y2 = 0.83 m. How much mechanical energy is lost in the bounce? The effect of air resistance has been experimentally found to be negligible in this case, and

asked by John on June 2, 2012
44. ## Physics

A golf ball is struck with a five iron on level ground. It lands 91.4 m away 4.20 s later. What was (a) the direction and (b) the magnitude of the initial velocity? angle=tan-1(Ry/Rx) for direction R=(Rx^2+Ry^2)^(1/2) I cannot figure out the variables and

45. ## Physical Education

What are the measurements of field hockey stick and ball? What are the names of 4 International hockey Players? What is IFWHF and FIH? What are Social, Mental and Physical Well-being? Describe Endomorph,Ectomorph and Mesomorph What is Health?

asked by Kerry-Ann on June 23, 2008
46. ## Physics

When I work this problem I get an answer different from what's given not sure why? A basketball is launched with an initial speed of 8.8 m/s and follows the trajectory shown. The ball enters the basket 0.98 s after it is launched. What are the distances x

asked by Ben on September 14, 2014
47. ## grammar

Change the following sentence from Active voice to Passive voice: 1. The teacher shouted at the learners when thy did not do their homework. 2. The thief stole a watch from the shop. 3. The soccer player dribbled the ball.

asked by Ephraim on June 15, 2009
48. ## physics

A steel ball bearing the radius 1 cm is rolling along a table with speed 20 cm/sec when it starts to roll up an incline. How high above the table level will it rise before stopping? Ignore friction losses.

asked by Ama on December 5, 2010
49. ## physics

a ball of mass 0.1kg is thrown vertically upwards with an initial velocity of 80m/s.calculate the potential energy (I) half way up (ii) at its maximum height.what is the kinetic energy as it leaves the ground

asked by stephen on March 13, 2016
50. ## Calculus

State the growth factor in each of the following situations. Newspaper readership is declining by 7 1/3 % per year. A bouncing ball rebounds to 1/3 of its previous height. Dont know how to solve these fractions:\ I just hate working with fractions.

asked by Anonymous on September 21, 2011
51. ## math

5. A group of children are playing baseball in a small field. Their baseball diamond is a square with sides 14.1 m. When throwing the ball from home plate to second base how far must it go? Round your answer to one decimal place.

asked by Panzy on November 9, 2014
52. ## physics

a baseball was launched from 1.5 m above the ground. the ball was caught at a position 4.5m above the ground with a speed of 28m/s moving at a angle of 30 degrees below horizontal: find initial velocity - time of flight - range

asked by al on September 10, 2013
53. ## Physics

A square steel plate is 9.00 cm on a side and 0.600 cm thick. Assume that the plate is oriented with the square faces horizontal to the ground. A. Find the shear strain that results if a force of magnitude 1.00×106 N is applied to the top square face of

asked by Melissa on March 31, 2011
54. ## Physics

In Case A the mass of each block is 4.8 kg. In Case B the mass of block 1 (the block behind) is 9.6 kg, and the mass of block 2 is 4.8 kg. No frictional force acts on block 1 in either Case A or Case B. However, a kinetic frictional force of 9.4 N does act

asked by robert on October 14, 2012
55. ## chemistry

What intermolecular force(s) must be overcome to do the following. (a) sublime ice hydrogen bonding dipole-dipole interactions (not hydrogen bonding) induced-dipole/induced-dipole forces ion-dipole force You can choose one. Can some one please explain. I

asked by Rebekah on February 26, 2011
56. ## PHYSICS

In Case A the mass of each block is 4.0 kg. In Case B the mass of block 1 (the block behind) is 8.0 kg, and the mass of block 2 is 4.0 kg. No frictional force acts on block 1 in either Case A or Case B. However, a kinetic frictional force of 7.8 N does act

asked by Anonymous on September 18, 2014
57. ## Physics!!

The universal gravitational con- stant is 6.672 × 10−11 N m2/kg2. Objects with masses of 152 kg and 269 kg are separated by 0.45 m. A 53.5 kg mass is placed midway between them. Find the magnitude of the net gravitational force exerted by the larger

asked by Bob on May 8, 2012
58. ## Physics

Given: The universal gravitational con- stant is 6.672 × 10−11 N m2/kg2. Objects with masses of 152 kg and 269 kg are separated by 0.45 m. A 53.5 kg mass is placed midway between them. Find the magnitude of the net gravitational force exerted by the

asked by Bob on May 3, 2012
59. ## Physics

Given: The universal gravitational con- stant is 6.672 × 10−11 N m2/kg2. Objects with masses of 152 kg and 269 kg are separated by 0.45 m. A 53.5 kg mass is placed midway between them. Find the magnitude of the net gravitational force exerted by the

asked by Bob on May 3, 2012
60. ## Physics

Robin Hood is known for stealing from the rich to give to the poor. He finds himself surrounded by some angry noblemen who demand he return their gold chest. Outnumbered, he takes an arrow from his quiver and fires it straight into the air, scattering the

asked by unowen on June 16, 2017
61. ## Physics

A CsCl (cesium chloride) salt crystal is built from the unit cells shown in the figure below. Cl− ions form the corners of a cube and a Cs+ ion is at the centre of the cube. The edge length of the cube, which is called the lattice constant, is 0.4 nm.

asked by Michel on January 18, 2016
62. ## Math "Need Help Asap"!

"Find each percent of markup?" 5.)Store's cos:\$26 selling price:\$39 6.)Store's cost:\$125 selling price:\$168.75 7.)Store's cost:\$75 selling price:\$90 "Find each selling price round to the nearest cent?" 8.)"A Video game costs a store \$20. If the store sells

asked by #FreeGucci on May 27, 2016
63. ## statistics

A manager for a firm that sells advertising space in magazines and periodicals is considering a number of new initiatives to recognize high-performing members of her sales force. Assume that the annual sales revenue for members of her sales force is

asked by heather on July 21, 2012
64. ## physics

A hungry bear weighs 700 N walks to a basket of candy that is located in end of a beam . The beam is uniform and weighs 200N , with a length of 6.0 m . The beam is supported by a cord forming an angle of 60 ° . The basket weighs 80 N. When the bear is

asked by ??? on November 6, 2015
65. ## science-college physics

2. A certain wire of length L, cross-sectional area A is extended by an amount ‘e’ by a force F. Given that the young’s modulus of the material of the wire is E, Show that the; a. Energy stored in the wire is given by the expression (5) b. Energy per

asked by hamunyela morga on April 19, 2016
66. ## physics

what kind of force field surrounds a stationary electric charge? What additional field surrounds it when it moves? "what kind of force field surrounds a stationary electric charge?" Electric field. "What additional field surrounds it when it moves?"

asked by amy on December 4, 2006
67. ## physics

Tom the cat is chasing Jerry the mouse across a table surface 1.5 m off the floor. Jerry steps out of the way at the last second, and Tom slides off the edge of the table at a speed of 5.0 m/s. Where will Tom strike the floor, and what velocity components

asked by Anonymous on September 26, 2007
68. ## calculus

10. A military jet flies horizontally with a velocity of 450 m/s and 20,000 m above the ground. When the jet is straight above an artillery gun a shell is fired. Assuming the shell hits the jet. a. Calculate the horizontal component of the initial velocity

asked by Sue on September 20, 2015
69. ## math

10. A military jet flies horizontally with a velocity of 450 m/s and 20,000 m above the ground. When the jet is straight above an artillery gun a shell is fired. Assuming the shell hits the jet. a. Calculate the horizontal component of the initial velocity

asked by alfred on September 20, 2015
70. ## econ600

As vice president of sales for a rapidly growing company, you are grappling with the question of expanding the size of your direct sales force (from its current level of 60 national salespeople). You are considering hiring from 5 to 10 additional

asked by rabiah on October 12, 2013
71. ## science

2. A thin rod of length 10m is in the x-y plane parallel to the x axis. Its centre is at the point (3,2) .A force of 100 N in the x-y plane is applied at its right end at an angle of 30o from the x-axis. An equal and opposite force is applied at its other

asked by sant on August 29, 2010
72. ## Math

The air pressure in a tire is 150.000 kPa. The internal surface area of the tire is 1150.000 cm^2. Determine the total force applied by the air to the tire. (Round to 3 decimal places) Answer = kN 150.000 kPa x 1000 = 150000 Nm 1150.000 cm / 100 cm = 11.5

asked by Danny on December 26, 2013
73. ## Physical Science

My homework is to do some exercises on the Foucault Pendulum. I'm stuck on several of the problems. One is to find the approximate angle of rotation of the earth in one day at our latititue, which is 39.9. I found the equation n = 360 sin of latitude, but

asked by Beth on September 23, 2007
74. ## Physical Science

A 10 N object rests on a 10° incline. What is the normal force? What is the parallel force? A 10 kg object rests on a 10° incline. What are the normal and the parallel forces?

asked by Angela on March 8, 2017
75. ## physics

2. A 10 N object rests on a 10° incline. What is the normal force? What is the parallel force? A 10 kg object rests on a 10° incline. What are the normal and the parallel forces?

asked by physics LSU on October 13, 2010
76. ## Physics[CONCEPT- NO MATH]

F = G(m1 x m2)/(d)^2 If you double the mass of one object and double the distance between the center of the two objects what happens to the force? If you double the mass of each object and double the distance between them what happens to the force?

asked by Michael on December 4, 2012
77. ## physics

2. A 10 N object rests on a 10° incline. What is the normal force? What is the parallel force? A 10 kg object rests on a 10° incline. What are the normal and the parallel forces

asked by devin boutte on October 13, 2010
78. ## Physics

Figure (a) shows charged particles 1 and 2 that are fixed in place on an x axis. Particle 1 has a charge with a magnitude of |q1| = 12.0e. Particle 3 of charge q3 = +13.0e is initially on the x axis near particle 2. Then particle 3 is gradually moved in

asked by Phil on January 20, 2012
79. ## Physics

Figure (a) shows charged particles 1 and 2 that are fixed in place on an x axis. Particle 1 has a charge with a magnitude of |q1| = 12.0e. Particle 3 of charge q3 = +13.0e is initially on the x axis near particle 2. Then particle 3 is gradually moved in

asked by Phil on January 20, 2012
80. ## Physics

A beam of unknown charged particles passes at right angle to the direction of magnetic field of 9.0 10-2 T. If the speed of the particles is 3.0 104 m/s and force experienced by a particle is 8.64 10-16 N, how many electric charges are carried by one

asked by Landon on May 26, 2009
81. ## Physics

A plane, diving with constant speed at an angle of 52.0° with the vertical, releases a projectile at an altitude of 790 m. The projectile hits the ground 6.00 s after release. (Assume a coordinate system in which the airplane is moving in the positive

asked by Matt on September 26, 2013
82. ## Physics

A plane, diving with constant speed at an angle of 52.0° with the vertical, releases a projectile at an altitude of 790 m. The projectile hits the ground 6.00 s after release. (Assume a coordinate system in which the airplane is moving in the positive

asked by URGENT PLS HELP on September 26, 2013
83. ## physics

A wire of length 11 cm carries a current of 1.1 A. When the wire is placed so that the current passes through the wire along the positive x direction, the force on the wire due to an external magnetic field B is measured to be -(0.04 N)j. When the wire is

asked by Sandhya on February 27, 2010
84. ## physics

As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 9.8%. Find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the

asked by Natasha on February 11, 2012
85. ## Physics

As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 47.9%. Find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the

asked by Ryan C. on September 23, 2012
86. ## physics

As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 9.8%. Find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the

asked by Natasha on February 9, 2012
87. ## Physics

As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 28.2 %. Find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the

asked by Danielle on October 15, 2012
88. ## Physics

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site it is commented that we

asked by Justin on October 8, 2006
89. ## Math-Algebra

(Engineering) The current / varies as the electromotive force E and inversely as the resistance R. If in a system, a current of 20A flows through a resistance of 20 ohms with an electromotive force of 100V, find the currect that 150V will send throu+gh the

asked by McKenna Louise on December 18, 2013
90. ## Physics Meteorite

A satellite in a circular orbit around earth with a radius 1.019 times the mean radius of the earth is hit by an incoming meteorite. A large fragment m=60 kg is ejected in the backwards direction so that it is stationary with respect to the earth and falls

asked by Andy on November 30, 2009
91. ## math

in volleyball, you can volley, set, or spike.how many ways can your team make two plays? use tree diagram. thanks Draw three "branches" for the first play, then three branches from each of them for the second "play" for a total of nine. However, two

asked by dillon on April 10, 2007
92. ## sci

1. A penny is dropped from the 82nd Floor Observatory of the Empire State Building. The penny will fall from a height of 320 meter (1,050 feet). (a) How long will it take to fall? (b) How fast is it going when it hits the ground? 2. Aim the Mythbuster’s

asked by ray on November 3, 2011
93. ## sci

1. A penny is dropped from the 82nd Floor Observatory of the Empire State Building. The penny will fall from a height of 320 meter (1,050 feet). (a) How long will it take to fall? (b) How fast is it going when it hits the ground? 2. Aim the Mythbuster’s

asked by ray on November 3, 2011
94. ## Physics

Two forces are applied to a car in an effort to accelerate it. The first force, F1 = 326 N, is applied at an angle α = 40° to the forward dashed line. The second force, F2 = 488 N, is applied at an angle β = 8° to the forward dashed line. a. What is

asked by Bridge on September 25, 2011
95. ## physics

The Ferris Wheel in the figure below is a vertical, circular amusement ride with radius 10 m. Riders sit on seats that swivel to remain horizontal. The Ferris Wheel rotates at a constant rate, going around once in 11 s. Consider a rider whose mass is 59

asked by mo on February 23, 2012
96. ## pre ap physics

A) A small cork with an excess charge of +9.0x10^-6 is placed 0.13 m from another cork, which carries a charge of −3.2x10^-6. What is the magnitude of the electric force between the corks? The Coulomb constant is 8.98755 × 10^9 N • m^2/C^2. Answer in

asked by keely on April 14, 2013
97. ## PHYSICS

Two lifeguards pull on ropes attached ton a raft. If they pull in the same direction, the raft experiences a net external force of 341 N to the right. If they pull in opposite directions, the raft experiences a net external force of 170 N to the left. Find

asked by Emily on September 30, 2012
98. ## math

The height in meters of a projectile launched from the top of a building is given by h(t)=-5t^2+60t+15, where t is time in seconds since it was launched. a) How tall is the building? b) At what time does the projectile hit the ground? C)What is the

asked by mike on December 3, 2015
99. ## Language Arts

Underline the verb in each sentence, and identify its tense. 1. It rained last night. -underline rained and it is past tense 2. We closed all the windows quickly.-underline closed and it is past tense 3. Thunder crashed outside.-underline crashed and it is

asked by Patrick on November 11, 2015
100. ## physics

A block of mass m = 1.02 kg is suspended above the ground at a height h = 14.4 m by a spool with two arms. The spool-with- arms arrangement is a combination of a solid uniform cylinder of mass M = 3.43 kg and radius R = 0.440 m, and two rods, each of

asked by Lauren on November 4, 2014