A charge of +2.00 x 10-9 C is placed at the origin, and another charge of +4.00 x 10-9 C is placed at x = 1.5 m. Find the point between these two charges where a charge of +3.00 x 10-9 C should be placed so that the net electric force on it is zero.

Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87