# 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 234
1. ## physics

A car of mass 600 kg is travelling at 10m/s. when brakes are applied, it comes to rest in 10 M. what is the average force exerted by the brakes?

asked by Farah on March 1, 2010
2. ## physics

calculate the acceleration if you push with a 20n horizontal force on a 3 kg block on a horizontal friction-free air table

asked by Anonymous on October 2, 2011
3. ## physics

A 10,000 kg frieight car is rolling along a track at 3.0 m/s. Calculate the time needed for a force of 1000 N to stop the car.

asked by michaela on April 22, 2010
4. ## Physics

A car travels around a curve banked at 45 degrees at 30 m/s. The radius of the track is 40m. What is the resultant force on the driver of the car?

asked by Jody on January 7, 2015
5. ## physics

A car of mass 1200kg travelling @ 72 km/h is brought to rest in 4s.Find a) the average deceleration b)the average braking force

asked by Luc on August 3, 2011
6. ## Physics

Initially sliding with a speed of 2.3 m/s , a 1.8 kg block collides with a spring and compresses it 0.36 m before coming to rest. WHat is the force constant of the spring?

asked by Jason on November 3, 2010
7. ## physical

An airplane travels 80 m/s as it makes a horizontal circular turn which has a 0.8 km radius. What is the magnitude of the resultant force on the 75 kg pilot of this airplane?

asked by yusra on April 18, 2010
8. ## physics

Two identical 1.60 {\rm kg} masses are pressed against opposite ends of a spring of force constant 1.85 {\rm N}/{\rm cm}, compressing the spring by 25.0 {\rm cm} from its normal length.

asked by Anonymous on December 23, 2011
9. ## Physics

The two pistons in a hydraulic lift have radii of 2.67 cm and 20.00 cm respectively. What force must be applied to the 2.67 cm piston so that a 2.0 x 103 kg mass resting on the 20.0 cm piston is lifted?

asked by Tiffani on March 31, 2014
10. ## Physics

A body of mass 3 kg experiences a force F=(2i +2j) N. If its initial velocity v=( -8i + 4j) m/s, then the time at which it will have a velocity just along the y-axis is ? (The expressions contain vector notations above them)

asked by Clandestine on March 31, 2013
11. ## physics

two objects attract each other gravitationally with a force of 2.5^-10N.when they are 0.25m apart. Their total mass is 4.00kg. Find the individual mass?

asked by rdw on March 30, 2014
12. ## Physics

What pressure is exerted by the tip a nail struck with a Force of 20,000N? Assume the tip is a 1.5mm-radius circle.

asked by Sandra on April 1, 2014
13. ## Physics - Vectors/Forces

A 10 kg weight is on an inclined plane 10 ft long and 6 ft high. If there is no friction, what force parallel to the plane will prevent the body from sliding?

asked by Demitrio on July 15, 2017
14. ## chemistry

Identify each of the ff reactions and say wha type of diving force for this.(a) chlorine+sodium iodin=2sodium chloride+iodin

asked by Anonymous on September 29, 2014
15. ## Physics

Calculate the force of the Earths gravity on a spacecraft 12,800 km (2 earth radii) above the Earths surface if its mass is 1350 kg?

asked by Mr. McKee on June 14, 2012
16. ## Physics 103

So I have a question about magnetism. A charged particle moves through a region of space and experiences no magnetic force. Does that mean that the magnetic field is zero?

asked by Kate on March 2, 2010
17. ## Mechanics - physics

A car of mass 400kg moving initial at 36km/h increases to 120km/h in 6sec, what is the force acting on the car?

asked by Precious on January 4, 2013
18. ## physics

A railroad car with a mass of 2000kg is rolling at a speed of 15m/s. What force would be required to stop the car in 10 seconds?

asked by Tcrowder on March 21, 2013
19. ## college physics

A 1.2-kg piece of cheese is placed on a vertical spring of negligible mass and a force constant 1800 N/m. What is the length of compression of the spring?

asked by khent on February 15, 2011
20. ## Science

check answer please. An object is pulled with 3 forces: 1 at 20n to the right another at 40n to the right and the third at 30n to the left. The net force is 30n to right

asked by Sue on August 27, 2012
21. ## physics, math

A hot air balloon with a mass of 18.0 kg is accelerating upward at 1.80 m/s^2 (Anet = 1.80 m/s^2). What is the weight and buoyant force acting on the balloon?

asked by Sarah on November 1, 2014
22. ## Physics

Initially sliding with a speed of 2.5 m/s, a 2.0 kg block collides with a spring and compresses it 0.35 m before coming to rest. What is the force constant of the spring?

asked by Caleb on December 30, 2014
23. ## physics

My car is accelerating from o to 60 km/hr in 3.2 seconds. if the mass of my car is 2450kg and the froce of friction is 30 N, what is the force produced by my cars engine

asked by Anonymous on February 16, 2011
24. ## Physics

An applied force of 50 N at an angle of 47.5 degrees up of East is applied to a 7.25 kg crate. Find the coefficient of friction if acceleration is 3.0 m/s/s E. a. 0.28 b. 0.42 (I know this one is wrong) c. 0.56 d. 0.35 e. 0.49

asked by Sarah on April 19, 2010
25. ## physics - - -

A 12.0g bullet is accelerating from rest to a speed of 700m/s as it travels 20.0cm in a gun barrel. How large is it's accelerating force ?

asked by Reema on November 2, 2010
26. ## physics

A highway is being constructed to accommodate traffic for speeds of 22.8 m/s. If the angle of the bank is 6.28° and there is no friction force, what is the highway's curve radius?

asked by abdul on October 24, 2016
27. ## Physics - Buoyant Force Question

Find the buoyant force on a helium balloon in air (Standard Pressure and Temperature) if the balloon is spherical with diameter 12.0 cm.

asked by Anon on November 11, 2016
28. ## physics

A 7.6 kg chair is pushed across a frictionless floor with a force of 42 N that is applied at an angle of 22° downward from the horizontal. What is the magnitude of the acceleration of the chair?

asked by aly on December 2, 2010
29. ## Physics - Another Question

"Three forces act at a single point. Two of the forces are 39N southwest and 45N north. What is the value of the third force that creates equilibrium?"

asked by Stuck on July 28, 2010
30. ## Science/Biomaterials

Hooke's law relates the amount of strain a material to the absolute amount of force applied. True or False?

asked by James on June 5, 2012
31. ## Banked Curves

A 1200 kg car rounds a curve of radius 70m with a banking of 12°. The car is traveling 90 km/h, will a frictional force be required? If so, how much?

asked by Yinka on October 9, 2018
32. ## physics

The net external force on a cart is N north. If the cart has a total mass of 220 kg, What are the magnitude and direction of its acceleration?

asked by Dulce on July 9, 2014
33. ## science

A steel block has a volume of 0.08m3 and a density of 7,840kg/m3 what is the force of gravity acting on the block(the weight in water?

asked by Anonymous on January 30, 2014

what physical force can cause a change in the state of matter what is the difference between chemical and physical changes what occurs during Bose-Einstein condensation Please help me.

asked by completeidiot on September 4, 2012
35. ## Physics

A 2500-kg car is traveling at 20 m/s around a road curve of radius 200 m. Find the central force acting on the car?

asked by Jen on September 13, 2015
36. ## Physics

A 1.2kg box on a table slides through a displacement of d is equals to 2m a frictional force fx =0.5N Wat is the initial speed of the box

asked by Anonymous on March 7, 2013
37. ## math science geography

A resultant force of 15.00n acts on a body for 4s mass 4kg. calculate the change in momentum of the body within this period

asked by john on May 20, 2017
38. ## physics

A boulder in a river has weight of 65N. It displaces a volume of water with a weight of 10N. Which is the net force on this rock? 55 N down 65 N down 75 N up 75 N down

asked by Carter on April 17, 2012
39. ## physics

A boat is inclined upwards at 30 to the horizontal. the tension of the string is 200N. what is the force tending to raise the boat out of water.

asked by anointed on February 21, 2016
40. ## Science -

"To lift an object weighing 12,000N, how much force is needed on a piston with an area of 0.060 m^2 if the platform being lifted has an area of 3.0 m^2?"

asked by Rene on October 7, 2018
41. ## physics

Two identical positive charges exert a repulsive force of 6.6 multiplied by 10^-9 N when separated by a distance of 5.8 multiplied by 10^-10 m. Calculate the charge of each.

asked by Mara on January 13, 2009
42. ## physics

Determine the force required through A for the system to remain in static equilibrium in the horizontal (not moving side to side). The forces at B and C are 40 N and 90 N, respectively

asked by Anonymous on February 12, 2012
43. ## Science

Two fixed particles of changes 1 micro coulomb and 3micro coulomb are 10cm apart. How far apart from each other should a third charge be placed so that no net electrostatic force acts on it.

asked by Felicia on October 8, 2016
44. ## physics

Does the tension in the rope or chain of a swing do any work on a child who is swinging? No. Work is done when the force is applied in the direction of motion.

asked by mitch on September 30, 2006
45. ## physics

The mass of a vehicle is 4.25 tones concentrate 1.25 meters behind the front wheels what is the force required to jack up the rear wheels?

asked by shelly on March 30, 2014
46. ## Calculus

A rusted bolt requires 30 J of torque to be loosened. If only 40 N of force is applied to a wrench with which it makes a 90° angle, how long is wrench?

asked by Jake on April 2, 2012
47. ## Garde 12 Calc

Determine the work done by force f=[1,4] in newtons for an object moving along the vector d =[6,3] Okay i found the vector equation and then the parametric and now i have no clue what do please help :)

asked by Louis on June 18, 2012
48. ## intermolecular force

In a mixture of ethanol and water, the strongest intermolecular force present between the two chemicals is ? is it hydrogen bond? yes its hydrogen bonding

asked by krissee on January 26, 2007
49. ## Marianne

Fill in the blank: The electrons follow a ________ path when they are deflected in a magnetic field due to the magnetic force.

asked by Physics on March 13, 2015
50. ## Physics

A 200N force acts on a 30kg mass on a horizontal surface against 50N of friction. What is the speed of the mass after 5 seconds?

asked by Teah on October 18, 2010
51. ## physics

A body of mass 5kg is to be given an acceleration of 20m/s2.calculate the force required when acceleration is vertically upwards (g=10m/s2)

asked by Abdullahi on January 20, 2016
52. ## Physics

Initially sliding with a speed of 2.3 m/s, a 2.0 kg block collides with a spring and compresses it 0.41 m before coming to rest. What is the force constant of the spring?

asked by Abby on March 9, 2010
53. ## physics

What is the minimum downward force on the box in the figure that will keep it from slipping? The coefficients of static and kinetic friction between the box and the floor are 0.38 and 0.28, respectively.

asked by garth on June 7, 2012
54. ## Physics

A boy on a bucycle drags a wagon full of newspapers at 0.80m/s for 30 minutes using a force of 40N. How much work has the boy done?

asked by kelly on April 8, 2011
55. ## English

I left out 2 sentences. Can you help me check it? Thank you. 1) She is not the complement to her husband,but (?) rather the driving force behind her husband. In spite of the fact that we tried to save him, he died.

asked by Henry2 on December 4, 2011
56. ## Calculus

When a particle is located a distance x meters from the origin, a force of cos(x/4) newtons acts on it. How much work W is done in moving the particle from x = 1 to x = 3?

asked by Ethan on December 4, 2011
57. ## Physics

Using a ramp length of 2m, you apply a 150N force to move a 20kg object a vertical distance of 1m. How much work did you do on the object?

asked by Faith on November 28, 2015
58. ## Physics

A rowboat passenger uses an oar to push the boat off the dock by exerting a force of 40.0 N for 3.0 s. What impulse acts on the boat? What formula do I use?

59. ## Physics Coulombs Law

A proton is at the origin and an electron is at the point x = 0.45nm , y = 0.38nm . Find the electric force on the proton. Fx , Fy = N How do I go about solving these 2 problems?

asked by Anonymous on February 3, 2015
60. ## physics

Three point charge are located at a line 20cm with charge q1= -3uC, q2= +4uC, q3= -7uC. Determine the magnitude of the force.

asked by ama on January 31, 2015
61. ## Physics

A 980 kg car traveling at 20 m/s rounds a curve of radius 40 m. What is the friction force that must act on the car to keep it in its circular path?

asked by Mark on November 16, 2012
62. ## Physics

If a lever is 6 feet long and the fulcrum is six inches from a 500 N boulder, how many newtons of force would be needed to life the boulder?

asked by Alex on March 17, 2012
63. ## Physics

forces of 185N and 245N act east and south respectively on an 80 kg mass.If the force of friction is ZERO , find the accleration of the mass.

asked by Jo on December 9, 2010
64. ## physics

Two charges are separated until they are a distance of 191 cm apart, causing the electric force between them to increase by a factor of exactly 5. What was their initial separation distance?

asked by anonymous on March 1, 2011
65. ## physics

a force of 890n acts on a body that weighs 265n if the body starts from rest, how fast will it be going after it has moved 3.00m

asked by lml on February 13, 2014
66. ## Physics

1580 kg car is traveling with speed of 15 m/s. What is magnitude of horizontal net force that's required to bring the car to a stop in 50 m?

asked by Jenn on October 5, 2009
67. ## physics

A conductor of length 2m carries a current of magnetic field of magnetic flux density 0.5T. The maximum force acting on it is ?

asked by taylor on July 12, 2016
68. ## Science

A car of mass 1200kg increases its velocity from 20m/s to 60m/s in 8seconds. Calculate the acceleration force on the car.

asked by Lucky chembe on April 17, 2016
69. ## Physics

A Spring of force constant 300N/m is compressed such that its length shortens by 3cm. calculate the energy stored in the spring?. please Help

asked by Ochuko on January 22, 2011
70. ## P

Calculate the magnitude of the gravitational force exerted on a 1,405-kg satellite that is a distance of two earth radii from the center of the earth.

asked by Anonymous on October 10, 2012
71. ## English

What could I use as a memory clue (or picture) for the following words? Evicted: Def. To force out. Requisitioned: Def. Demand, or urgently ask for something for military needs.

asked by Tommy on August 23, 2008
72. ## physics

The two forces F1 and F2 act on a 27-kg object on a frictionless tabletop. If F1 = 7.1 N and F2 = 33 N, find the net force on the object and its acceleration. WHAT IN the world...how do i figure this out!

asked by aNGEl on November 7, 2010
73. ## AP Physics

A car does 8.0 ✕ 104 J of work in traveling 2.7 km at constant speed. What was the average retarding force (from all sources) acting on the car?

asked by - on November 11, 2015
74. ## physics

If a resultant force of 15N acts on a body of mass 4kg for 4seconds.Calculate the change in momentum of the body

asked by Ibem on February 16, 2017
75. ## Physics

A constant unbalanced force is applied to an object for a period of time. What would the graph look like as acceleration as a function of elapsed time?

asked by Zoë on June 7, 2016
76. ## Physics A

how much work is being done a bookshelf being pulled 5 meters at an angle of 37 degrees from the horizontal? The magnitude of the component of the force that does the work is 43 Newtons

77. ## physics

A body of mass m is attracted to a 11 kg mass 31.2cm away with a force magnitude of 6.42 x 10^-8 Find m? I am having trouble with the algebra getting m by it self just show me the steps if you can

asked by john on November 15, 2012
78. ## physics

a 10 kg weight is on an inclined plane. 10 ft long and 6 ft high. if there is no friction, what force parallel to the plane will prevent the body from slidin?

asked by hurd on November 23, 2012
79. ## Physics

The four wires in the figure are tilted at 20 with respect to the field direction. Each carries 4.5 and is 0.35 long. What is the magnitude and direction of the force on each wire?

asked by Bob on March 7, 2011
80. ## physics: BOB or DRWLS follow up question

What average force is required to stop an 1100-kg car in 8.0 s if it is traveling at 95 km/h? i understand what you both did, but why can't you use the V = Vo + at equation and solve for acceleration there and use that in the EF = ma equation?

asked by beckii on November 21, 2007
81. ## Science

Humid breaks down chs molecules become ionized) in an electric field of 3.0×10^6N/C. In that field what is the magnitude of the elextrostatisc force on(a) an electron

asked by ernaawati on April 26, 2018
82. ## Physics

A box is pushed across a floor with a force of 2.8 N at an angle of 26.8 degrees above the horizontal. How much work, in Joules, must be done to move the box a distance of 8.3 m?

asked by Amolica on April 21, 2016
83. ## physics

A force of -9000 N is used to stop a 1500kg car traveling at 20 m/s. What braking distance is needed to bring the car to a halt?

asked by Bobbie on November 1, 2011
84. ## Physics

A 100 N force is applied to a 50.0 kg crate resting on a level florr. The coeeficient of kinetic friction is 0.15. a. What is the acceleration of the crate?

asked by jdajaljk on January 28, 2011
85. ## walter

A positive charge of 1.5x10^-8 C experiences a force of 0.025 N to the left in an electric field. What are the magnitude and direction of the field?

asked by george on March 8, 2012
86. ## physics

Two rocks sitting in the field are 200m apart. If the two rocks have a mass of 75Kg and 100Kg respectively, what is the gravitional force between them? Answer now pls!!

asked by Kayla on November 30, 2011
87. ## physics

A 63.8 kg woman lifts herself 36.6 cm each time she does a chin-up. What force does she exert in lifting herself to the chin position? And, how much positive work does she do in pulling herself up once?

asked by confused on October 16, 2014
88. ## Physics

When a 75kg goes over the top of a hemispherical bump at a speed of 18m/s their contact force with the ground is just 250N. What is the radius of the bump?

asked by John on April 1, 2019
89. ## physics

three forces, each of magnitude 1450 LB act in the same point. The angle between adjacent forces is 45.0 degree. Find the resultant force?

asked by carol on November 24, 2013
90. ## ps

A climber pulls herself 8 meters upwards with a force of 150 Newtons. If it takes her 16 seconds to cover the 8 meters, how much power is she using?

asked by Anonymous on October 4, 2010
91. ## Physics

A bike and cyclist have a combined mass of 75 kg. If the brakes can apply a maximum force of 20 N, what is the shortest time in which the cyclist can stop?

asked by Justin on February 10, 2015
92. ## physics

Initially sliding with a speed of 4.1 m/s, a 1.8 kg block collides with a spring and compresses it 0.37 m before coming to rest. What is the force constant of the spring? k=Nm

asked by ani on April 3, 2017
93. ## physics

An electric field of 210000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of -6.2C at this spot?

asked by shaun on February 14, 2013
94. ## Physics

a person jumps from a ledge 3.7 meters and when he drops to the ground it takes .7 meters for him to stop what is the force applied to his body

asked by Cat on June 30, 2013
95. ## physics

two identical copper spheres are separated by 1m in vacuum. how many electrons would have to be removed from one sphere and added to other sphere so that they attract each other with force of 0.9N

asked by divy on June 2, 2014
96. ## physics

An elastic spring of force constant 20Nm is stretched through 8m within its elastic limit calculate the energy stored on thestring?

asked by BIZHATOCOTO on April 9, 2019
97. ## Physics

If the circle and square have the same area, then magnetizing force at the center of the coil as a result of current flowing through the coil will be in the ratio

asked by Judish on October 9, 2012
98. ## physics

a car weighing 14700N is moving at 20m/s. If the frictional force on it is 2160N , How fast would it be moving when it has travelled 50m

asked by maham on May 13, 2013
99. ## PHYSICS

dETERMINE the horizontal force needed to accelerate a 50 kg grocery cart from rest to 0.90 m/s in 2.8s if the coefficient of friction between the cart and the floor is 0.20?

asked by Dulce on August 11, 2014
100. ## Physics

A hockey skater turns in a circular path with radius of 31.0 m while going 10.5 m/s. If he experiences a centripetal force of 565 N, what is the mass of the skater?

asked by Smit on November 15, 2015