1.

Force that pulls toward the center of mass.

What are the three hallmarks of science

A moving billiard ball hits another ball at rest, causing the first ball to stop moving as the second rolls away.

Name the energy resource that involves extracting heat from rocks

Can prokaryotes have more than one cell

Which of the following is a characteristic of science? Testing many variables at once Each scientist gets unique results when doing the same experiment Using controlled conditions Starting with the answer that you want

An iron railroad rail is 800 ft long when the temperature is 31°C. What is its length (in ft) when the temperature is - 17°C?

How does the lever arm change if you decrease the angle of the force?

Why does changing the shape of an object have no effect on the density of that object?

2. Vehicle-braking distance is the distance your vehicle travels after you see a problem before you apply the brakes. A. true B. false

On a sky coaster (human pendulum) that reaches 10 meters from it's equilibrium position, a man of 120 kg is able to reach a maximum speed of 18m/s 14m/s 1200m/s 11m/s