A +2.0 e. c. charge is placed in an electric field of
1.9 x 10²⁰ N/C [up].

What is the
magnitude and direction of the electric force it feels?

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?