Which of the following is true about frictional forces?

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

If a car generates 18hp (which is 13428Watts) when traveling at a steady speed of 88km/h (which is 24.44m/s), what must be the average force exerted on the car due to friction and air resistance?

How are impulse and momentum related? (P Impulse is the change in momentum of an object. Momentum is the change in impulse acting on an object. Impulse and momentum are always equal in magnitude. Impulse and momentum are the same thing.

If the velocity of a moving car increases from 9.0 m/s to 25.0 m/s in the span of 5 seconds, what is the average acceleration during this time period, in m/s2

A neutral atom that gains electrons will have what kind of charge?

How can you use scientific law in a sentence

What is the formula for amplitude?

The unit of length most suitable for measuring the thickness of a cell phone is a

According to the plate tectonics model what layers form earths rigid moblie plates

The north star was published by