What is the momentum of a 12,000 kg car moving at a speed of 40 m/s?

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

The air that we breath is made mostly of which gaseous molecule

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer