Which option is a force? O A. Mass O B. Velocity O C. Acceleration O D. Weight

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

You throw a baseball directly upward at time t = 0 at an initial speed of 12.3 m/s. what is the maximum height the ball reaches above where it leaves your hand? at what times does the ball pass through half the maximum height? ignore air resistance and take g = 9.80 m/s2.

What produces light and all other electromagnetic waves? a) the photoelectric phenomena b) heated metals c) charged particles d) radioactive samples (pls explain if you can : )