Which of the following elements has the highest atomic mass?

1. Helium: 2 protons and 2 neutrons

2. Nitrogen: 7 protons and 7 neutrons

3. Oxygen: 8 protons and 8 neutrons

4. hydrogen: 1 proton and no neutrons

A light is traveling straight up out of the ocean, then moves out of the air. how do you expect the movement of the light wave to change?

Know? Like to know? Learned physical science chapter 16

Notice that we have the weight of the crane exerting a torque about the front wheels of the same crane. to create a torque, a force must be present, so it would seem that somehow the weight of the crane is exerting a force upon its front wheels.

Determine the kinetic energy of a 7.5 kg roller coaster car that is moving with a speed of 42.8 m/s.

What can happen to solar radiation when it enters atmosphere

What is the mechanical advantage of a pulley?

What kind of movement does the heat within the core and mantle directly generate?

Explain why Newton's first law of motion can be difficult to observe in moving objects?

No force is necessary to

A boat has a mass of 4040 kg. Its engines generate a drive force of 4660 N due west, while the wind exerts a force of 880 N due east and the water exerts a resistive force of 1400 N due east. Take west to be the positive direction.