A block of mass m = 5.9 kg slides from left to right across a frictionless surface with a speed It collides with a block of mass M that is at rest. After the collision, the 5.9-kg block reverses direction, and its new speed is The block of mass M travels to the right at a speed V of 3.8 m/s. What is M? 7.9 kg

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

that would be because of both gravity and friction. so     c