Answer this plzz and ill give you 12 points

How much heat is required to convert 0.3 kg of ice at 0°c to water at the same temperature

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

Each neuron shown in this figure innervates a group of muscle fibers. what is the term for a group of muscle fibers innervated by a single neuron?