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 246
1. physics

A charge of -3.35 nC and a charge of -7.00 nC are separated by a distance of 40.0 cm. Find the position at which a third charge of +7.10 nC can be placed so that the net electrostatic force on it is zero.

asked by lisa on September 3, 2010
2. physics

The force acting on a wire that is at right angles to a(n) 0.80 T magnetic field is 2.1 N. The current in the wire is 6.7 A. How long is the wire?

asked by Jeff on March 10, 2013
3. physics

In a particle accelerator, a proton reaches an acceleration of 9.0 × 1013 m/s2. The mass of a proton is 1.7 × 10 -27 kg. What is the force on the proton?

asked by maranda on October 15, 2014

In a particle accelerator, a proton reaches an acceleration of 9.0 × 1013 m/s2. The mass of a proton is 1.7 × 10 -27 kg. What is the force on the proton

asked by Jason on October 15, 2014
5. physics

a 20N force is required to stretch a spring by 0.5 m. a) what is the spring constant? b)how much energy is stored in the spring ?

asked by Anonymous on March 12, 2013
6. physics

a 20N force is required to stretch a spring by 0.5 m. a) what is the spring constant? b)how much energy is stored in the spring ?

asked by Anonymous on March 12, 2013
7. Physics

Three point charges lie along the x-axis: q1 at x=15m has a charge of 2.2 x 10^-9C, q2 at x=2.0m has a charge of 5.4 x 10^-9C, q3 at x=0 has a charge of 3.5 x 10^-9C. What is the net force on q3?

asked by Pauline on March 7, 2011
8. subjects and predicates

i need some more help about predicates and subjects what would the subject to these? _____________ i went to school last Wednesday what subject would go on the blank and how about these other blank subjects _________ did not understand the joke.

asked by brianna on September 23, 2012
9. 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 on November 28, 2012
10. Physics

A 12 kg hammer strikes a nail at a velocity of 8.2 m/s and comes to rest in a time interval of 0.0083 s. 1. What is the impulse given to the nail? 2. What is the average force acting on the nail?

asked by Nick on November 11, 2010
11. physics

A heavier mass m1 and a lighter mass m2 are 18.0 cm apart and experience a gravitational force of attraction that is 9.70 10-9 N in magnitude. The two masses have a combined value of 5.65 kg. Determine the value of each individual mass.

asked by Jarrod on June 30, 2013

A 1.2kg block is dropped from 48cm above a spring in equilibrium. The force constant for the spring is 124N/m. Calculate the maximum compression in the spring.

asked by Alex on June 16, 2011
13. physics(universal law of gravitation)

a satellite has a mass of 100 kg and is located at 2 x 10^6 m above the surface if the Earth. wHAT is the potential energy associated with the satellite at this location? What is the magnitude of the gravitational force on the satellite?

asked by Nina on January 14, 2010
14. physical science

alever is used to lift a heavy load. when a to-n force pushes one end of the lever down 1.2m the load rises 0.2m. show the weight of the load is 300n

asked by hattie on August 17, 2011
15. Physics

A heavier mass m1 and a lighter mass m2 are 20.5 cm apart and experience a gravitational force of attraction that is 8.60 10-9 N in magnitude. The two masses have a combined value of 5.80 kg. Determine the value of each individual mass.

asked by Lynn on June 22, 2014
16. alexandria

The force pulling a truck down hill is 2000 newtons what is the size of the static friction acting on the truck if the truck doesn't move?

asked by ceecee on September 8, 2015
17. physicss

A heavier mass m1 and a lighter mass m2 are 20.5 cm apart and experience a gravitational force of attraction that is 8.80 10-9 N in magnitude. The two masses have a combined value of 5.65 kg. Determine the value of each individual mass.

asked by Anonymous on January 21, 2015
18. physics

A 15-cm-long tendon was found to stretch 3.7 mm by a force of 13.4 N. The tendon was approximately round with an average diameter of 8.5 mm. Calculate Young’s modulus of this tendon.

asked by emy on November 6, 2013
19. PHYSICS

a locomotive pulls 10 identical freight cars with an acceleration of 2m/s^2. How does the forced between the third and fourth cars compare to the force between the seventh and eighth cars?

asked by EMMA on July 5, 2014
20. physics

You accelerate your 1500 Kg from 2 m/s to 12 m/s in 2 seconds. How do you determine the cars acceleration initial momentum final momentum change in momentum the force required to do this?

asked by Kelley on January 11, 2016
21. Physics

a 50 kg ice skater is skating on a frozen lake where the ice has a coefficient of friction of .08. How much force is required to push her across the ice at a constant velocity?

asked by caroline on October 5, 2016
22. science

If a projectile is shot under an angle of 30* with a force of 500N what is the time the projectile reaches the maximum hight.The projectile's mass is 100g.(g=10N/kg)

asked by Christian on March 27, 2016
23. physics

A spherical mass 'm'is dropped vertically off a building starting from rest and 'y=0'.the mass experience a resistive force 'FR=-bv'.let 'r=b/m'.find the position'y(t)'of mass???

asked by M.sani on April 26, 2012
24. physics

A parachutist descends vertically a distance of 380 m at a constant speed of 2.9 m/s. The mass of the parachutist is 70 kg. What is the work done on the parachutist by the net force during this descent?

asked by Jina on November 5, 2014
25. physics

A race car travels 90 m/s around a circular track of radius 93.5 m. 2.9 mg µ = 0.12 19◦ What is the magnitude of the resultant force on the 2900 kg driver and his car if the car does not slip?

asked by ccbatman on December 2, 2012
26. physics

A circular steel wire 2.00 m is to stretch no more than 0.25 cm when a tensile force of 400 N is applied to each end of wire. What minimum diameter is required for the wire?

asked by colleen on August 22, 2009
27. physics

the velocity of a car increases from 36km/hr to 54km/hr in one minute determine the force exerted by the engine on the car mass of the car is 120kg

asked by Anonymous on August 21, 2011
28. Physics

A spring has a force constant of 546.5 N/m. Find the potential energy stored in the spring when the spring is a) stretched 4.18 cm from equilibrium. Answer in units of J

asked by Angel on December 11, 2011
29. physics

A heavier mass m1 and a lighter mass m2 are 17.5 cm apart and experience a gravitational force of attraction that is 9.80 10-9 N in magnitude. The two masses have a combined value of 5.00 kg. Determine the value of each individual mass

asked by Jake on October 15, 2014
30. physics

Two boys stand on the surface of a frozen lake where μs = 0.15 and μk = 0.10. The 30.0 kg boy shoves the 40.0 kg boy with a horizontal force of 50.0 N, 0.0°. Find the resulting acceleration of each boy.

asked by Mush on November 30, 2014
31. Physics

A)...If this pitch were thrown horizontally, the ball would fall .809m by the time it reached home plate, 18.3m away. The acceleration of gravity is 9.81 m/s^2 How fast was the pitch Answer in m/a B)... A spy and an official reach the edge of a 5.4m

asked by Hunter on October 2, 2013
32. Physics

A)...If this pitch were thrown horizontally, the ball would fall .809m by the time it reached home plate, 18.3m away. The acceleration of gravity is 9.81 m/s^2 How fast was the pitch Answer in m/a B)... A spy and an official reach the edge of a 5.4m

asked by Hunter on October 2, 2013
33. Enghish Identify pronoun errors

Identify the type of pronoun error in the sentence. 1 Neither of we boys was going to the ball game. A)reference B)case C)agreement 2)The papers are on the desk that I corrected. A)reference B)case C)agreement 3)The traffic pattern on the new road is

asked by Mary on March 25, 2014
34. Physics

A)...If this pitch were thrown horizontally, the ball would fall .809m by the time it reached home plate, 18.3m away. The acceleration of gravity is 9.81 m/s^2 How fast was the pitch Answer in m/a B)... A spy and an official reach the edge of a 5.4m

asked by Hunter on October 2, 2013
35. Enghish Identify pronoun errors

Identify the type of pronoun error in the sentence. 1 Neither of we boys was going to the ball game. A)reference B)case C)agreement 2)The papers are on the desk that I corrected. A)reference B)case C)agreement 3)The traffic pattern on the new road is

asked by Mary on March 25, 2014
36. Physics

Two carts with the same mass are pushed together with a compressed spring between them. When the carts are let go, both move apart, from the spring force. Which will move with a higher speed? What will be the total momentum of the system be? Two cars, one

asked by Pedro on February 12, 2018
37. Physics

A ball of mass m is attached to a spring with a spring constant k. The system is attached to a thin vertical axis as shown in Figure 4. In its equilibrium vertical position the spring length is L. The axis starts to rotate with a constant angular frequency

asked by James on December 9, 2014
38. Physics!!

An athlete at the gym holds a 5.54kg steel ball in his hand. His arm is 80.4cm long and has a mass of 4.26kg. What is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor? b).What is the

asked by joane on November 12, 2012
39. Spanish

Hey can someone proofread my work? I had to write a short paper on the life of an astronaut. Thanks. SPANISH: Una vida del astronauta como una parte de la Estación Espacial Internacional es muy interesa. Debido a la diferencia en la gravedad, un

asked by JYD on October 5, 2006
40. physics

Whats the physics behind this? 3 balls are placed at the top of an inclined beam. The beam, attached to a spinning platform, is spun manually. As the platform and beam slows down, the first ball rolls down the beam. The beam instantly speeds up, but slows

asked by Carlie on April 21, 2009
41. calculus

A variable force of 7xâˆ’2 pounds moves an object along a straight line when it is x feet from the origin. Calculate the work done in moving the object from x = 1 ft to x = 19 ft. (Round your answer to two decimal places.)

asked by cynthia on March 15, 2017
42. help

A big luxury car weighing 1.96 x 104 N (about 4400 lb), travelling in the x direction makes a fast stop; the x component of the net force acting on it is -1.50x 104 N. What is its acceleration?

asked by Anonymous on September 22, 2014
43. Math

A weight lifter is raising a barbell of mass 120kg. He does this in two stages. At the end of the first stage he holds the barbell steady at shoulder height. What upward force is each arm exerting?

asked by Hussain on October 25, 2013

A force F=Fx ˆi + Fy ˆj + Fz ˆk acts on a particle located at X= (x, y, z). Given Fx=−88.3N, Fy=7.56N, Fz=60N, x= −3.65m, y=1.67m and z=7.03m, calculate the three components of the torque vector ~ = xˆi + y ˆj + z ˆk . First, calculate the x

asked by Amber on April 23, 2012
45. physics

a vehicle of mass 1000 kg is moving on a bridge which has the shape shown on the figure below. the radius is of 50 m and the speed is 15m/s find the magnitude of the force exerted by the on the bridge if the car is on the top.

asked by thacien on September 19, 2017
46. Math, calculus III

A particle moves along the path from the origin to (0, 2, 1) to (1, 2, 1) to (1, 0, 0) and back to the origin under the influence of the force field F = z2i + 2xyj+ 4y2k. Calculate the work done by direct calculation and by using Stokes’ Theorem

asked by Jacky on September 18, 2017
47. AP physics

Four forces act on a hot-air balloon with F1 = 1660 N and F2 = 5080 N , shown from the side in Figure 4-29. Find the magnitude and direction of the resultant force on the balloon. a)N b)° (counterclockwise from the horizontal)

asked by Amelia on December 12, 2011
48. Physics

A gyroscope with rotational inertia 6.4 10-3 kg·m2 is precessing in a horizontal plane at 0.46 rad/s under the influence of a 0.31 N·m torque caused by a force pointing vertically downward. How fast is the gyroscope spinning on its axis?

asked by Jake on November 9, 2012
49. Physics

A 27.0kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 71.0N and is directed at an angle of 30.0deg above the horizontal. Determine the coefficient of kinetic friction.

asked by Danielle on October 15, 2012
50. Maths

A body of mass m falling from rest is subjected to the force of gravity and an air resistance proportional to the square of the velocity. If it falls through a distance x and posseses a velocity v at that instant then show that.

51. physics

A 747 jetliner lands and begins to slow to a stop as it moves along the runway. If its mass is 3.50x^5 kg. Its speed is 27.0 m/s, and the net braking force is 4.30x10^5 N. (a)what is its speed 7.50 s later? (b)how far has it traveled in this time?

asked by Dakota on March 15, 2011
52. physics

Four forces act on a hot-air balloon with F1 = 1660 N and F2 = 5040 N , shown from the side in Figure 4-29. Find the magnitude and direction of the resultant force on the balloon. N ° (counterclockwise from the horizontal)

asked by Anonymous on January 2, 2011
53. physics

Four forces act on a hot-air balloon with F1 = 1660 N and F2 = 5040 N , shown from the side in Figure 4-29. Find the magnitude and direction of the resultant force on the balloon. N ° (counterclockwise from the horizontal)

asked by Anonymous on January 2, 2011
54. Physics

An airline pilot pulls her 12.0 kg rollaboard suitcase along the ground with a force of 25.0 N for 10.0 meters. The handle she pulls on makes an angle of 44.0 degrees with the horizontal. How much work does she do over the ten-meter distance?

asked by Ryan on March 14, 2011
55. physics

a wagon is being pulled by a rope that makes at 25o angel with the ground . thee person is pulling with a force of 103N along the rope . determine the horizontal and vertical components of the vector

asked by smail on March 7, 2012
56. college physics

An airline passenger pulls a wheeled suitcase, exerting a force of 60N, at a 35º angle with the horizontal. How much work does she do on the suitcase in pulling it 45m from a taxi to the checkout counter?

57. Physics

Consider two students, a 65 kg guy and a 50 kg girl who are attracted to each other, gravitationally, that is. They sit next to each other in Physics class which means there is 1.5m between their centers. What is the magnitude of the force of gravity

asked by Maria on May 3, 2015
58. science

the drawing of three particle far away from any other particle located in a straight line .masses of these particles are Ma=363kg,Mb=517kg,Mc=154kg.find the magnitude and the direction of net gravitational force acting on them

asked by jona on September 11, 2016
59. phyics

The figure shows a person whose weight is W = 500 N doing push-ups. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that the person holds this position.

asked by bobby on November 1, 2013

What are some external human elements that may force an organization to change? Competition from other companies, rising prices of materials, natural disasters, new products that make your organization obsolete -- these are some of my thoughts.

asked by Ms Brown on May 4, 2007
61. Physics

three identical 2*`0^-5C point charges are placed a the corners of an equilateral triangle pf sodes 1m. The triangle has one apex C pointing up the page and 2 base angles A and B. Deduce the magnitude and direction of the force acting at A thanks!

asked by Anonymous on February 25, 2009
62. Science

A projectile of mass 0.650 kg is shot straight up with an initial speed of 20.0 m/s. If the projectile rises to a maximum height of only 12.4 m, determine the magnitude of the average force due to air resistance.

asked by Anonymous on December 14, 2010
63. physics

A softball having a mass of 0.25 kg is pitched at 95 km/h. By the time it reaches the plate it may have slowed 10%. neglecting gravity, estimate the average force of air resistance during a pitch. if the distance between the plate and the pitcher is about

asked by joyce on October 13, 2015
64. physics

PLEASE HELP!! I HAVE A TEST TOMORROW!! i just posted this problem but a very important drawing was left out! if Q=30 uC, q=5.0 uC, and d=30cm, what is the magnitude of the electrostatic force on q in N? (Ke= 8.99 x 10^9 Nm^2/C^2) (uC= micro coulombs) (u=

asked by Bobby on April 6, 2009
65. physics

A .255 kg mass is attached to a spring and executes simple harmonic motion with a period of .56 s. The total energy of the system is 3.6 J. Find the force constant of the spring. Answer in units of N/m

asked by Anonymous on September 16, 2013
66. physics

A 5.2 kg projectile is launched from a launching device. It leaves the launcher traveling at 4000 m/s. The net force during the launch was equal to 4.3×105 Newtons. How much time did the project spend in the launcher?

asked by Anonymous on February 14, 2014
67. physics

a straight road is inclined 30 degees to the horizontal and a man is walking along the road at the rate of 2 and a half miles an hour. how many feet does he ascend vertically against the force of gravity in 15 minutes?

asked by Anonymous on December 6, 2011
68. physics

A person opens a door by applying a 11-N force perpendicular to it at a distance 0.90m from the hinges. The door is pushed wide open (to 120 ∘ ) in 2.2s How much work was done? What was the average power delivered?

asked by john on June 3, 2015
69. physics

A 39.5 N child is in a swing that is attached to ropes 2.01 m long. What is the gravitational potential energy when the child is at the bottom of the circular arc? I thought that you would multiply the force given by 2.01 m, but the answer I calculated was

asked by amy on October 31, 2009
70. Physics

A constant force of 100N , directed upward, is applied to a 5.0kg toy rocket by the rocket's engine. Find the rockets acceleration? I thought it'd be as simple as F=ma to be 20 m/s2 but I was wrong. What am I overlooking?

asked by Eiban on February 15, 2014
71. physics

A person opens a door by applying a 11-N force perpendicular to it at a distance 0.90m from the hinges. The door is pushed wide open (to 120 ∘ ) in 2.2s How much work was done? What was the average power delivered?

asked by john on June 3, 2015
72. Biomechanics

If an average net force of 20N at 45* is applied to a 0.35 kg water balloon for 0.12s. how far away should the catcher stand? Assume release height and cathc height are the same and air resistance is not a factor.

asked by Bob on November 29, 2010
73. Physica

(Please put the resulting figures and Thanks)))) a man pushes a box of mass 5 kg in a horizontal direction by 10 N force on the surface through a distance of 5m if the cofficien of kinetic friction is 0.2 the total work done on the box is

asked by 19191919 on July 16, 2012
74. Economics

-The "Baby Boomers" are in their retirement age. What affect might this have on the productive capacity of a country's labor force? -How does consumer demand and the price mechanism influences demand in the factor market?

asked by Maria on February 13, 2012
75. Physics-Mechaincs

A block is pushed up a frictionless incline by an applied horizontal force as shown. The acceleration of gravity is 9.8 m/s2 . mass=2.7 kg F = 33 N theta=29◦ What is the magnitude of the resulting ac- celeration of the block? Answer in units of m/s2.

asked by Genevieve on September 19, 2010
76. PHYSICS

A Boat of bottom area 2m2 is pushed by a force of 500N.It moves with a constant V of 10ms-1.If the mass of the boat is 50kg and the coefficient of viscosity of water is 1*10-3, what is the depth of the pond.

asked by BEENA on December 26, 2013
77. Physics

A constant force of friction of 50 N is acting on a body of mass 200kg moving initially with a speed of 15m/s. How long does the body take to stop? What distance will it cover before coming to rest?

asked by Anna on July 30, 2015

A force F=Fx ˆi + Fy ˆj + Fz ˆk acts on a particle located at X= (x, y, z). Given Fx=−88.3N, Fy=7.56N, Fz=60N, x= −3.65m, y=1.67m and z=7.03m, calculate the three components of the torque vector ~ = xˆi + y ˆj + z ˆk . First, calculate the x

asked by Amber on April 25, 2012
79. physics

A sign is hanging from the ceiling on two threads of equal length, which make an angle $\theta$ of 108.5 "degrees" with each other. What is the tension (in N) in each thread, assuming that the force of gravity acting on the sign is 46.5 N?

asked by shafi on March 18, 2014
80. Physics 2

four identical charges (q = +3µC) are arranged in a form of a rectangle. what are the magnitude and direction of the net electric force on the charge in the lower right corner attributable to the other three charges? distances are in meters.

asked by Naomi on August 16, 2014
81. TO BOBPURSLEY

acceleartiononmoon= GMassmoon/radius^2 =G 7.35E22/(1.74E6)^2= G 2.43E10= = 6.67E-11*2.43E10= 1.62 m/s^2 or as a gravitational field constant= 1.62 N/kg I have no idea why you used the mass of Earth. were did you get a = r^-2 Gm from i thought that the

asked by TO BOBPURSLEY on September 12, 2009
82. statistics

A pilot study has revealed a sample standard deviation of 16 for age of people in the work force. How large a sample must be chose to obtain an estimator of the mean that, with 95% confidence, will be correct to within 2 years?

asked by Sally on March 20, 2009
83. science

A circular hole of 150 mm diameter is to be punch out of a 2 mm thick plate. the shear stress needed to cause fracture is 400 Mpa. calculate the minimum force to be applied to the punch.

asked by Hassan on October 19, 2015
84. fluid mechanics

A dam has been constructed of a large cylindrical pipe 10ft in diameter an 3ft long. Calcualte the net vertical and horizontal components of the fluid(water) force on this dam.

asked by Kim on March 22, 2015
85. Physics

What is the magnitude of the average force required to stop an 1500kig car in 8.0 s if the care is traveling at 95 km/h? Formula: Sigma F= ma *convert 95km/h to 26m/s Which kinematic equation do I use and for which variable do I use within the equation?

asked by Mr. McKee on June 11, 2012
86. Physics matter and its properties

A bar is 500 mm long and is stretched to 505 mm with a force of 50 kN. The bar is 10 mm diameter. Calculate the stress and strain The material has remained within the elastic limit. Determine the modulus of elasticity.

asked by farid on December 27, 2013
87. Physics

A car of mass 1396 kg is parked on a very slippery hillside (see figure below). To keep it from sliding down the hill (è = 15°), the owner attaches a cable. If there is no frictional force between the road and the tires, what is the tension in the cable?

asked by Lily on October 19, 2012
88. PHysics

A gun is fired, and a 50gram bullet is accelerated to a muzzle speed of 100m/s. If the length of the gun barrel is 0.90m, what is the magnitude of the accelerating force? Assume the acceleration is constant. Help me please???

asked by Ricky on November 16, 2017
89. physics

A rough wooden block of mass 4kg placed on a rough horizontal plank is applied by a force of 35n until it just starts to move calculate the coefficient of static friction (take 9=10m/s

asked by Anaebo on November 15, 2011
90. science

Question: Fill in the blank. If two forces work in opposite directions of an object, the ________ between the two forces equal the net force. Answer Choices: A)Difference B)Similarity C)Equality

asked by Nikali on December 30, 2013
91. Calculus Physics

A particles with mass 3.7 kg moves in the x direction according to the following function: x(t)=−7+4t+3t2−4t3. (the units of each coefficient are meters, and time is measured in seconds). At time t=7.8, what is the net force acting on the particle?

asked by danny on February 18, 2015
92. physics

two masses (11kg and 33kg) are connected by a string and hung over a pulley in a steamy sauna where air resistance has a force of 77N on all objects. Find the acceleration of the 33kg block

asked by Anonymous on November 6, 2011
93. physics HELP

a 18.0kg sled being pulled across horizontal surface at constant velocity. pulling force has magnitude of 82.0N and is directed at angle of 30 degree above horizontal. determine coefficient of kinetic friction

asked by hy on November 21, 2010
94. Physics

A tug tows a small boat with a rope inclined upwards at 30 degrees to the horizontal. The tension in the string is 2000 newton. What is the force tending to raise the boat out of water

asked by Cherish on August 5, 2018
95. physics

A large aquarium has viewing ports so people can watch dolphins swim by. What is the net force on a rectangular window, 2.30 m wide and 1.20 m high, if the top of the window is 4.50 m below the surface of the water?

asked by John on June 9, 2016
96. Science

Three negatively charged sphere, each with a charge of a 4*10^-6C, are fixed at the vertices of an equilateral triangle whose sides are 20cm long. Calculate size and direction of the net electric force on each sphere.

asked by Tsoanelo on April 24, 2012
97. physics

The figure shows a person whose weight is W = 670 N doing push-ups. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that the person holds this position.

asked by ram on October 22, 2014
98. fluid mechanics

A dam has been constructed of a large cylindrical pipe 10ft in diameter and 3ft long. Calculate the net vertical and horizontal components of the fluid(water) force on this dam.

asked by Kim on March 22, 2015
99. physics

If a 648 N body on a carpeted surface has a μs of 0.86 and a μk of 0.68, what amount of force will be required to start dragging the body across the floor? Make sure to report your answer with the correct number of significant figures

asked by Linda on November 5, 2014
100. College Physics

A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

asked by Allen on October 14, 2011