Apoint charge of 4.0 µc is placed at a distance of 0.10 m from a hard rubber rod with an electric field of 1.0 × 103 . what is the electric potential energy of the point charge? × 10–4 j what is the electric potential energy of the point charge at 1.3 m? × 10–3 j

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?

The particles that are found in the nucleus of an atom are