How do the frequency and period of a wave relate together

An elements atomic number is 8 how many protons would an atom of this element have

A raft with a mass of 180 kg carries two swimmers having masses of 50 kg and 80 kg. The raft is initially at rest. The swimmers dive off opposite ends of the raft at the same time, each with a speed of 3 m/s.

Dave's 8 kg bowling ball headed towards the pins with a momentum of 192 kg m/s. What was the velocity of the ball?

Two blocks of mass 6 kg and 8 kg are connected by a string that runs over a massless pulley (or a frictionless peg). What is the magnitude of the acceleration after the blocks are released?

36 The height of a 30-story building is approximately (1) 10^0 m (3) 10^2 m (2) 10^1 m (4) 10^3 m

If the weight is 950 newtons, what is the mass?

You are standing against the wall near a corner of a large building. A friend is standing against the wall that is around the corner from you. You can't see your friend. How is it that you can hear her when she talks to you?

What is general relativity in easy terms?

Temperature and volume are directly or inversely

My Notes A basketball rolls across a classroom floor without slipping, with its center of mass moving at a certain speed. A block of ice of the same mass is set sliding across the floor with the same speed along a parallel line.