An object is being pushed with an 8 n force so that it accelerates at 4 m/s² to the right. what is the mass of this object? a. 0.5 kg
b. 2 kg
c. 4 kg
d. 32 kg

An electron moving at 5.06 103 m/s in a 1.23 t magnetic field experiences a magnetic force of 1.40 10-16 n. what angle does the velocity of the electron make with the magnetic field? there are two answers between 0° and 180°. (enter your answers from smallest to largest.)