To be a healthy family, which of the statements below is true:
a.
family members need to be perfect.
b.
family members must include a mom, dad, and children.
c.
family members try to work out differences together.
d.
family members must never disagree.

Ahydroelectric plant takes energy from water and turns it into electrical energy. what are the transformations of energy in the water molecules that are used in the process of generating electricity this way?

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?