What is the centripetal acceleration of a point on the perimeter of a bicycle wheel of diameter 70.0 cm when the bike is moving 8.00 m/s?
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For a system in mechanical or static equilibrium,
For a system in mechanical or static equilibrium,
Determine if the following statements are true or false abou…
Determine if the following statements are true or false about gravitational force: The gravitational force acting upon an object at rest on a horizontal surface is the same as the weight of the object.
Describe the energy of a car driving up a hill.
Describe the energy of a car driving up a hill.
When a hard rubber rod is given a negative charge by rubbing…
When a hard rubber rod is given a negative charge by rubbing it with wool:
How much work is required to stop an electron ( m = 9.11 x…
How much work is required to stop an electron ( m = 9.11 x 10 – 31 kg) ( which is moving with a speed of 1.90 x 10 6 m/s?
An acorn falls from a tree. Compare its kinetic energy K, t…
An acorn falls from a tree. Compare its kinetic energy K, to its potential energy U.
An electrical insulator is a material:
An electrical insulator is a material:
A rifle of mass 2 kg is suspended by strings. The rifle fire…
A rifle of mass 2 kg is suspended by strings. The rifle fires a bullet of mass 0.01 kg at a speed of 200 m/s. The recoil velocity of the rifle is about
On a balanced see saw, a boy three times as heavy as his par…
On a balanced see saw, a boy three times as heavy as his partner sits A) 1/3 the distance from the fulcrum. B) less than 1/3 the distance from the fulcrum. C) more than 1/3 the distance from the fulcrum.