Two identically sized metal spheres are on insulating stands. The charge on sphere A is -4.0*10-6 coulombs and the charge on sphere B is -8.0*10-6 coulomb. What is the charge on Sphere B after they touch and separate? What is total number of excess electrons on Sphere A after they separate?

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j