# Sphere at rest in a uniform stream ---------------------------------------------- Consider a solid sphere of radius a at rest with its center being the origin of the system (r, theta, curly-phi). The sphere is immersed in an infinite stream of an ideal

30,906 questions
1. ## physics

solid sphere of uniform density starts from rest and rolls without slipping down an inclined plane with angle è = 30o. The sphere has mass M = 8 kg and radius R = 0.19 m . The coefficient of static friction between the sphere and the plane is ì = 0.64.

asked by phil on March 31, 2013
2. ## physics

A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 3.4 m down a q = 29° incline. The sphere has a mass M = 3.7 kg and a radius R = 0.28 m. What is the magnitude of the frictional force on the sphere?

asked by rufy on April 9, 2010
3. ## Physics

A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4.4 m down a q = 20° incline. The sphere has a mass M = 4.6 kg and a radius R = 0.28 m. Of the total kinetic energy of the sphere, what fraction is

asked by Kyley on July 11, 2011
4. ## PHYSICS

A 494 kg uniform solid sphere has a radius of 0.390 m. Find the magnitude of the gravitational force exerted by the sphere on a 49.1 g particle located (a) 1.45 m from the center of the sphere 1 ? N (b) at the surface of the sphere 2 ? N (c) 0.200 m from

asked by Steve on March 21, 2011
5. ## Physics

Two uniform solid spheres have the same mass of 3 kg, but one has a radius of 0.25 m while the other has a radius of 0.8 m. Each can rotate about an axis through its center. (a) What is the magnitude τ of the torque required to bring the smaller sphere

asked by Josh on January 11, 2014
6. ## Physics

A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4.4 m down a q = 20° incline. The sphere has a mass M = 4.6 kg and a radius R = 0.28 m. What is the translational kinetic energy of the sphere when it reaches

asked by Kyley on July 11, 2011
7. ## Physics

A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4.8 m down a θ = 36° incline. The sphere has a mass M = 3.2 kg and a radius R = 0.28 m. If there is no frictional force, what is the translational kinetic

asked by Kyle on March 12, 2016
8. ## Physics

A uniform solid sphere rolls along a horizontal frictionless surface at 35 m/s and makes a smooth transition onto a frictionless incline having an angle of 300. How far up the incline does the sphere roll when it comes to a momentary stop? Note for a

asked by Anonymous on July 28, 2015
9. ## Physics

A uniform solid sphere rolls along a horizontal frictionless surface at 35 m/s and makes a smooth transition onto a frictionless incline having an angle of 300. How far up the incline does the sphere roll when it comes to a momentary stop? Note for a

asked by Anonymous on July 28, 2015
10. ## Physics

A uniform solid sphere of mass 4kg and diameter 20cm initally at rest, begins to roll without slipping under the influece of gravity, down an incline that makes an angle of 15degrees to the horizontal 1 calculate the angular acceleration of the sphere 2

asked by Dermot on August 7, 2010
11. ## physics

Two solid spheres A and B are made from the same material. The mass of sphere B is eight times that of sphere A. If the radius of sphere A is 7.50 cm, what is the radius of sphere B? [Volume of a sphere of radius r is given by V = 4ðr63/3]

asked by Mandy on January 19, 2010
12. ## college physics

Two solid spheres A and B are made from the same material. The mass of sphere B is eight times that of sphere A. If the radius of sphere A is 7.50 cm, what is the radius of sphere B? [Volume of a sphere of radius r is given by V = 4ðr63/3]

asked by Mandy on January 19, 2010
13. ## college physics

Two solid spheres A and B are made from the same material. The mass of sphere B is eight times that of sphere A. If the radius of sphere A is 7.50 cm, what is the radius of sphere B? [Volume of a sphere of radius r is given by V = 4ðr63/3]

asked by Mandy on January 19, 2010
14. ## Physics

The moment of inertia of a solid uniform sphere of mass M and radius R is given by the equation I=(2/5)MR2 . Such a sphere is released from rest at the top of an inclined plane of height h, length L, and incline angle è. If the sphere rolls down the

asked by Anonymous on April 7, 2011
15. ## physics

A solid sphere of uniform density starts from rest and rolls without slipping down an inclined plane with angle θ = 30o. The sphere has mass M = 8 kg and radius R = 0.19 m . The coefficient of static friction between the sphere and the plane is μ = 0.64.

asked by stewart on November 6, 2014
16. ## physics

A solid uniform sphere has a mass of 7.0 104 kg and a radius of 1.2 m. (a) What is the magnitude of the gravitational force due to the sphere on a particle of mass m = 0.7 kg located at a distance of 2.1 m from the center of the sphere? N (b) What if it is

asked by Sam on July 16, 2010
17. ## physics

A solid sphere of mass m and radius r rolls with out slipping along the track.it starts from rest with the lowest point of tthe sphere at aheight h above the bottom of the loop of radius R,much larger than r.(a) what is the minimum value of h (interms of

asked by Anonymous on January 12, 2013
18. ## Physics 121

A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 2.7 m down a q = 23° incline. The sphere has a mass M = 4.8 kg and a radius R = 0.28 m. a) Of the total kinetic energy of the sphere, what fraction is

asked by Jay on July 14, 2010
19. ## math

A solid cone of height 12cm and radius 9 cm is recast into a solid sphere. Calculate the surface area of the sphere. cone V= 1/3 pi r^2 h sphere V= 4/3 pi r^3 area of sphere = 4r^2 how to find sphere of radius?

asked by kudu on February 4, 2015
20. ## Physics

Four objects - a hoop, a solid cylinder, a solid sphere, and a thin, spherical shell - each has a mass of 4.59 kg and a radius of 0.252 m. (a) Find the moment of inertia for each object as it rotates about the axes shown in the table above. hoop____ kg·m2

asked by Ana on March 19, 2010
21. ## physics

A positively charged solid sphere of radius 100 mm has a uniform volume charge density of 250 nC/m^2. Determine the electric field (a) 20 mm, (b) 90 mm, and (c) 110 mm from the center of the sphere.

asked by Dylan on February 5, 2015
22. ## Physics

A solid uniform sphere has a mass of 2.0 104 kg and a radius of 1.5 m. What is the magnitude of the gravitational force due to the sphere on a particle of mass m = 0.2 kg located at a distance of 1.6 m from the center of the sphere? What if it is 1.1 m

asked by winterWX on February 13, 2007
23. ## Physics

A small solid sphere, with radius 0.25 cm and mass 0.61 g rolls without slipping on the inside of a large fixed hemisphere with radius 17 cm and a vertical axis of symmetry. The sphere starts at the top from rest. (a) What is its kinetic energy at the

asked by Ray on October 26, 2009
24. ## Physics

A small solid sphere, with radius 0.25 cm and mass 0.61 g rolls without slipping on the inside of a large fixed hemisphere with radius 17 cm and a vertical axis of symmetry. The sphere starts at the top from rest. (a) What is its kinetic energy at the

asked by Ray on October 26, 2009
25. ## physic

An insulating solid sphere of radius a = 0.5 m. If the sphere carries a total positive charge of 15 nC, calculate the magnitude of the electric field at r = 0.2 m from the center of the sphere.

asked by johnny vrl on September 15, 2014
26. ## Physics

1. A hollow sphere and a solid sphere roll without slipping down two different ramps. They start at different heights. The speed and kinetic energy of each sphere is the same when they reach the bottom of their ramp. If the hollow sphere has mass 3.25 kg,

asked by Joelle on November 17, 2010
27. ## physics

A uniform solid sphere of mass M and radius R is rolling without sliding along a level plane with a speed v = 2.30 m/s when it encounters a ramp that is at an angle è = 27.6° above the horizontal. Find the maximum distance that the sphere travels up the

asked by Anonymous on October 22, 2010
28. ## Physics

A uniform solid sphere of mass M and radius R is rolling without sliding along a level plane with a speed v = 2.70 m/s when it encounters a ramp that is at an angle è = 20.4° above the horizontal. Find the maximum distance that the sphere travels up the

asked by Donny on October 16, 2010
29. ## Physics and Maths

A sphere of uniform density d1 has a radius R. It also consists of a hollow sphere of radius r. the sphere floats slightly on water of density d2. Find r.

asked by Anonymous on January 10, 2015
30. ## physics

A solid uniform sphere is released from the top of an inclined plane .25 m tall. the sphere rolls down the plane without slipping and there is no energy lost from friction. What is the translational speed of the sphere at the bottom of the incline?

asked by Anonymous on April 30, 2014
31. ## Physics

A solid sphere and a thin walled spherical she'll, both with a radius R, are set up to roll down a ramp and through a vertical loop of radius r. From what minimum height, h, does each sphere need to be released in order to make it around the loop? If the

asked by Kassy on November 8, 2016
32. ## physics

A 89 kg solid sphere with a 12 cm radius is suspended by a vertical wire. A torque of 0.37 N·m is required to rotate the sphere through an angle of 0.93 rad and then maintain that orientation. What is the period of the oscillations that result when the

asked by kendell on January 9, 2011
33. ## physics

A point mass m starts from rest and slides down the surface of a frictionless solid sphere of radius r. Find the angle at which the mass flies off the sphere

asked by sns on November 17, 2014
34. ## physics

A solid sphere of radius 35 cm is positioned at the top of an incline that makes 20 ◦ angle with the horizontal. This initial position of the sphere is a vertical distance 3.4 m above its position when at the bottom of the incline. The sphere is released

asked by Rebecca on March 9, 2017
35. ## Math

Which statement about a sphere is true? A.The length of the diameter of a sphere is two times the length of the radius of the sphere. B.The great circle of a sphere is a three-dimensional circle. C.The great circle of a sphere is not the same shape as the

asked by Xavier on May 16, 2019
36. ## Physics

A uniform 5.32 kg solid sphere of radius 0.344 m that is free to roll on a horizontal surface has a light axle passing through its diameter as shown. The axle is connected to a like yoke and in turn a light rope as shown. A constant tension of 7.81 N is

asked by Alphonse on November 14, 2012
37. ## physics

a uniform disk and a uniform sphere are rolled down an incline plane from the same point and intially they are at rest. Find the difference in time they arrive at a mark on the plane which is 6 meters from the starting point. The sphere has twice the mass

asked by jeff on November 21, 2009
38. ## physics

a uniform disk and a uniform sphere are rolled down an incline plane from the same point and intially they are at rest. Find the difference in time they arrive at a mark on the plane which is 6 meters from the starting point. The sphere has twice the mass

asked by jeff on November 21, 2009
39. ## math

A solid cone of height 12cm and radius 9 cm is recast into a solid sphere. Calculate the surface area of the sphere.

asked by kudu on February 2, 2015
40. ## Physics

A 2.00kg solid sphere of radius 5.00cm rolls down a 20 degrees inclined plane starting from rest. (a) What is the magnitude of the acceleration of the center of mass of the sphere? (b) How far down the plane does it roll without slipping in 1.00s?

asked by Nick on November 29, 2014
41. ## physics

A hollow cylinder, a solid cylinder, a hollow sphere, and a solid sphere roll down a ramp without slipping, starting from rest. The ramp is 0.25 m high. All the objects have radius 0.035. What are their final speeds? Please show what equation you used and

asked by Caroline on November 5, 2015
42. ## physics

A(n) 1.62 kg sphere makes a perfectly inelastic collision with a second sphere that is initially at rest. The composite system moveswith a speed equal to one-third the originalspeed of the 1.62 kg sphere. What is the mass of the second sphere

asked by Nathaniel on February 8, 2012
43. ## Calculus

Imagine slicing through a sphere with a plane (sheet of paper). the smaller piece produced is called a radius of the sphere. Its volume is V=(pi)h^2(3r-h)/3, where r is the radius of the sphere and h is the thickness of the cap. find dr/dh for a sphere

asked by Summer on July 15, 2017
44. ## Physics

A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 3.4 m down a q = 29° incline. The sphere has a mass M = 3.7 kg and a radius R = 0.28 m. What is the magnitude of the frictional force on the sphere? --The

asked by rufy on April 9, 2010
45. ## physics

A solid nonconducting sphere of radius 13 cm has a positive charge 9.8 × 10-8 C spread uniformly throughout its volume. The electric field at a point within the sphere at a radius 5.0 cm has a magnitude of

46. ## physics

In the figure below, a uniform sphere of mass m = 2.50 kg and radius r = 2.4 cm is held in place by a massless rope attached to a frictionless wall a distance L = 10.2 cm above the center of the sphere. (a) What is the tension in the rope? N (b) What is

asked by Jane on December 13, 2008
47. ## physics

A 3.0-kg sphere with a radius of 6.0 cm rolls from rest without slipping 4.0 m down an incline, reaching a speed of 7.0 m/s after rolling for 5.0 s. What is the torque that the friction interaction between the sphere and the incline exerts on the sphere?

asked by Anonymous on October 21, 2013
48. ## Physics

2) A solid nonconducting sphere of radius R = 5.6cm has a nonuniform charge distribution or volume charge density p= (1.41pCm^-3)r/R, where r is the radial distance from the sphere's center. a) What is the sphere's total charge? b) Calculate AND sketch a

asked by Ri on November 24, 2010
49. ## PHYSICS

Calculate the angular momentum of a solid uniform sphere with a radius of 0.120m and a mass of 14.5kg if it is rotating at 6.15rad/s about an axis through its center. Part B Calculate kinetic energy of a solid uniform sphere with a radius of 0.120m and a

asked by Chiongo on October 22, 2014
50. ## physics

A solid aluminum sphere has a radius of 2.28 m and a temperature of 89.1 °C. The sphere is then completely immersed in a pool of water whose temperature is 11.9 °C. The sphere cools, while the water temperature remains nearly at 11.9 °C, because the

asked by shaknocka on May 5, 2011
51. ## physics

A solid aluminum sphere has a radius of 2.28 m and a temperature of 89.1 °C. The sphere is then completely immersed in a pool of water whose temperature is 11.9 °C. The sphere cools, while the water temperature remains nearly at 11.9 °C, because the

asked by shaknocka on May 5, 2011

A 1.94 kg solid sphere (radius = 0.105 m) is released from rest at the top of a ramp and allowed to roll without slipping. The ramp is 0.710 m high and 5.17 m long. When the sphere reaches the bottom of the ramp, what is its total kinetic energy?

asked by Megan on March 13, 2011
53. ## Physics

A hollow sphere of radius 25 cm is rotating at 13 rad/ sec about an axis that passes through its center. The mass of the sphere is 3.8 kg. assuming a constant net torque is applied to the sphere, how much work is required to bring the sphere to a stop?

asked by hayley on July 8, 2012
54. ## physics

A solid sphere of radius 23 cm is positioned at the top of an incline that makes 23 degree angle with the horizontal. This initial position of the sphere is a vertical distance 3 m above its position when at the bottom of the incline. The sphere is

asked by Alyssa on November 27, 2012
55. ## Physics - electric potential

Consider a solid sphere of radius R = 0.52 m that is uniformly charged with ρ = -2.8 µC/m3. What is the electric potential a distance 2.6 m from the center of the sphere?

asked by J Velji on January 24, 2011
56. ## Physics

A sphere with a moment of inertia 0.658mr2 and mass m and radius r rolls without slipping along the track shown on a planet where the acceleration due to gravity is g. It starts from rest at a height h = 4.87R above the bottom of the circular loop of

asked by REEEEEEEE on November 2, 2012
57. ## math

The side length, d, of a cube that contains a sphere depends on the radius, r, of a sphere. Assuming that the faces of the cube are tangent to the sphere, write the volume of the cube as a function of the radius of the sphere.

asked by john on January 24, 2014
58. ## Science

It can be shown that for a uniform sphere the force of gravity at a point inside the sphere depends only on the mass closer to the center than that point. The net force of gravity due to points outside the radius of the point cancels. How far would you

asked by Natsi on October 2, 2009
59. ## Physics Problem 6.22

It can be shown that for a uniform sphere the force of gravity at a point inside the sphere depends only on the mass closer to the center than that point. The net force of gravity due to points outside the radius of the point cancels. How far would you

asked by Michael Moskvich on April 4, 2010
60. ## math

1. Sphere C(-2,1,-3), radius=7. T plane at (4,-2,-1)=? (a) 6x-3y+2z=0 (b) r.(6,3,2)=28 (c) 5x-3y-2z=28 (d) r.(6/7,-3/7,2/7) 2. Sphere (x-1)²+(y-5)²+(z-2)²=49 and planr r.(-2,-6,-3)=0 form which circle?(a) (x-1)²+(y-5)²+(z-2)²=19.53 (b) C(0,0,0),

asked by Anonymous on March 11, 2010
61. ## maths

1. Sphere C(-2,1,-3), radius=7. T plane at (4,-2,-1)=? (a) 6x-3y+2z=0 (b) r.(6,3,2)=28 (c) 5x-3y-2z=28 (d) r.(6/7,-3/7,2/7) 2. Sphere (x-1)²+(y-5)²+(z-2)²=49 and planr r.(-2,-6,-3)=0 form which circle?(a) (x-1)²+(y-5)²+(z-2)²=19.53 (b) C(0,0,0),

asked by Anonymous on March 12, 2010
62. ## Physics

A uniform sphere of radius R=30cm is made of a material of density 5000kg/m3.find the moment of inertia about an axis through the center of the sphere.

asked by Evans on April 23, 2018
63. ## physics

solid sphere,thin walled hollow sphere,solid cylinder from above the ground in the same mass and radius which object reach first the ground?

asked by Yonas on March 28, 2016
64. ## Physics

It can be shown that for a uniform sphere the force of gravity at a point inside the sphere depends only on the mass closer to the center than that point. The net force of gravity due to points outside the radius of the point cancels. How far would you

asked by Mikhail on April 15, 2010
65. ## physics

A(n) 3.91 kg sphere makes a perfectly inelastic collision with a second sphere that is initially at rest. The composite system moves with a speed equal to one-third the original speed of the 3.91 kg sphere. What is the mass of the second sphere? Answer in

asked by david on January 30, 2012
66. ## Dynamics

Problem 13.185 A 9.13 kg sphere A of radius 90 mm moving with a velocity magnitude v(0)= 2 m/s strikes a 830 g sphere B of radius 40 mm which is hanging from an inextensible cord and is initially at rest. Sphere B swings to a maximum height h after impact.

asked by Kate on September 22, 2011
67. ## Math

A solid sphere of 1.46kg and radius 0.1m, is rolling down a rough plane that is inclined at an angle 30 degrees to the horizontal. The 3 forces acting on the sphere are its weight, friction force and the normal reaction. The sphere starts rolling down when

asked by Tasneem on April 27, 2013
68. ## Math

A solid sphere of 1.46kg and radius 0.1m, is rolling down a rough plane that is inclined at an angle 30 degrees to the horizontal. The 3 ferces acting on the sphere are its weight, friction force and the normal reaction. The sphere starts rolling down when

asked by Tasneem on April 27, 2013
69. ## Physics

A uniform solid sphere rolls down an incline. (a) What must be the incline angle if the linear acceleration of the center of the sphere is to have a magnitude of 0.50g?

asked by Uina on March 22, 2015
70. ## math

a solid metal sphere of radius 32cm is melted down and recast to make 64 identical small spheres.what will be the radius of each small sphere?please explain ,thanks

asked by nicole on September 13, 2013
71. ## mechanics

A uniform solid sphere rolls down an incline. What must be the incline angle (deg) if the linear acceleration of the center of the sphere is to have a magnitude of 0.16g?

asked by JV on November 19, 2012
72. ## Physics

A hollow sphere has a uniform volume charge density of 4.61 nC/m3. The inner radius is a = 14.6 cm and the outer radius is b = 43.8 cm. What is the magnitude of the electric field at 21.9 cm from the center of the sphere? What is the magnitude of the

asked by Jacob on February 4, 2017
73. ## Physics

A hollow sphere has a uniform volume charge density of 4.61 nC/m3. The inner radius is a = 14.6 cm and the outer radius is b = 43.8 cm. What is the magnitude of the electric field at 21.9 cm from the center of the sphere? What is the magnitude of the

asked by John on February 3, 2017
74. ## Calculus

4. At time t, t>0, the volume of a sphere is increasing at a rate proportional to the reciprocal of its radius. At t = 0, the radius of the sphere is 1 and at t = 15 the radius is 2. a. Find the radius of the sphere as a function of t. b. At what time t

asked by Anonymous on February 14, 2012
75. ## calculus

3. The radius r of a sphere is increasing at a constant rate of 0.04 centimeters per second. (Note: The volume of a sphere with radius r is v=4/3pir^3 ). a. At the time when the radius of the sphere is 10 cm, what is the rate of increase of its volume? b.

asked by Yoona on January 3, 2012
76. ## Physics

A uniform solid sphere rolls down an incline without slipping. If the linear acceleration of the center of mass of the sphere is 0.21g, then what is the angle the incline makes with the horizontal?

asked by Sean on March 16, 2012
77. ## Physics

An green hoop with mass mh = 2.4 kg and radius Rh = 0.14 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.2 kg and radius Rd = 0.1 m. The other end of the string is attached to a massless axel through the center of an orange

asked by stewart on November 10, 2014
78. ## physics

An object is formed by attaching a uniform, thin rod with a mass of mr = 7.42 kg and length L = 4.88 m to a uniform sphere with mass ms = 37.1 kg and radius R = 1.22 m. Note ms = 5mr and L = 4R. 3) What is the moment of inertia of the object about an axis

asked by katie on April 27, 2018
79. ## Physics - Science

Imagine a hollow sphere of radius R and mass M. It is welded to the end of a solid rod of length L, whose mass is also M. The rod is attached to the sphere in such a way that the whole assembly, when viewed from the side, looks like a lollipop. (That is,

asked by Roxy on April 16, 2007
80. ## Physics

A hollow sphere has a uniform volume charge density of 2.22 nC/m3. The inner radius is a = 12.2 cm and the outer radius is b = 24.4 cm. What is the magnitude of the electric field at 18.3 cm from the center of the sphere? What is the magnitude of the

asked by Michael on February 2, 2016
81. ## physics

A solid metal sphere with radius 0.410 carries a net charge of 0.290 Find the magnitude of the electric field at a point 0.116 outside the surface of the sphere.

asked by Anonymous on February 10, 2010
82. ## Physics

It can be shown that for a uniform sphere the force of gravity at a point inside the sphere depends only on the mass closer to the center than that point. The net force of gravity due to points outside the radius of the point cancels. Part A How far would

asked by Kaan on November 16, 2012
83. ## Physics

Two spheres are cut from the same uniform rock. One has a radius r1 = 4.50 x 10-2 m and mass M1. The mass of the second sphere is M2 = 5M1. What is the radius of the second sphere?

asked by Joe on September 28, 2013
84. ## chemistry 1045L

The volume of a sphere is given by V=(4)(3.14)(r^3)/3 where r is the radius of the sphere. what is the density in g/mL of a sphere which weighs 2.00lb and has a radius of 3.50 inches?

asked by Angel on September 15, 2014
85. ## Urgent : Electricity and Magnetism

Two charged spheres are kept at a great distance from each other. Sphere A has charge +20q and sphere B has charge -14q. A neutral conducting sphere, sphere X, is then touched upon the sphere A, then sphere B, and X, repectively, after these q(a),q(b) and

asked by Ahsanur on July 4, 2014
86. ## Physics

I would really appreciate the help for this assignment. A small reasoning for the answer would be very helpful. Thank you. A sphere of mass m and radius r is attached to the rim of a disk (mass M, radius R). The disk is rotating counter-clockwise with a

asked by Kyle on October 31, 2014
87. ## physics

A metal sphere of radius 5.00 cm is initially uncharged. How many electrons would have to be placed on the sphere to produce an electric field of magnitude 1.59 105 N/C at a point 7.98 cm from the center of the sphere?

asked by Allie on September 12, 2012
88. ## physics

A small sphere of mass m = 0.520 kg is dropped from rest into a viscous liquid in which the resistive force on the sphere can be expressed as FD = −bv, and reaches one-fourth of its terminal speed in 3.14 s. (a) What is the terminal speed of the sphere?

asked by joy on February 15, 2018
89. ## PHYSICS 1

When a pitcher throws a curve ball, the ball is given a fairly rapid spin. A 0.15 kg baseball with a radius of 3.7 cm is thrown with a linear speed of 41 m/s and an angular speed of 37 rad/s. Assume that the ball is a uniform, solid sphere. (b) Calculate

asked by kelsey on October 20, 2008
90. ## Science

The electric field due to a charged conducting sphere of radius 10 cm , at a distance of 20 cm from the centre of the sphere is 1.5*10pow3 NC-1 and points radially inwards.what is the charge on the sphere ?

asked by Himanshu on June 2, 2016
91. ## physics

A solid sphere of weight 36.0 N rolls up an incline at an angle of 30.0o. At the bottom of the incline the center of mass of the sphere has a translational speed of 4.90 m s-1. Isphere = 2/5mr^2. What is the kinetic energy of the sphere at the bottom of

asked by kim on November 13, 2008
92. ## Physic

A 290-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 31° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest?

asked by Nikki on November 10, 2011
93. ## PHYSICS HELP

A 320-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 25° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest?

asked by A on November 3, 2010
94. ## Physics!!!

The electric field everywhere on the surface of a charged sphere of radius 0.260 m has a magnitude of 545 N/C and points radially outward from the center of the sphere. (a) What is the net charge on the sphere?

asked by Help on January 20, 2012
95. ## Physics!!!

The electric field everywhere on the surface of a charged sphere of radius 0.260 m has a magnitude of 545 N/C and points radially outward from the center of the sphere. (a) What is the net charge on the sphere?

asked by Help on January 20, 2012
96. ## Physics

two identical metallic ball spherical shells A and B charges 4Q and -10c are kept a certain distance apart a third uncharged sphere C is first placed in contact with sphere A and then with sphere B the sphere B are bought in contact and then separated find

asked by Anonymous on February 14, 2017
97. ## physics

A 280-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 25° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest? rad/s

asked by monic on November 30, 2012
98. ## physics

A 310-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 25° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest? rad/s

asked by alba on March 8, 2015
99. ## Physics

How would you set this up? A 250-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 28° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest?

asked by Courtney on October 21, 2014
100. ## MATH

asolid metal cube of side 10cm is melted down and recast as solid metal sphere.calculate the radius of the sphere.Take Pie=3.142

asked by Collins on April 2, 2017