How do massive stars change the atmosphere?

Light travels 186 000 miles per second. how many miles dose light travel in one year

What is the rising of rock layers called

What is energy that comes from the movement of particles

10. Calculate A ramp is 5.0 m long and 1.5 m high. What is the mechanical advantage of the ramp? Show your work. (Hint: The height of the ramp is the output distance.)

The distance between 2 charges Qa and Qb is r, and the force between them is F. what is the force between them if the distance is doubled?

A motorist driving at 25 meters/second decelerates to 15 meters/second. The combined mass of the vehicle and the driver is 1.5 * 10³ kilograms. What is the amount of mechanical work done by the vehicle?

All forces are different each exerts a particular type of effect on an object

Witch statement about polymers is true

Two bullets have masses of 3,0 g and 6.0g, respectively. both are fired with a speed of 40.0 m/s. Which bullet has more kinetic energy? What is the ratio of their kinetic energies

What does it mean that a form of energy might take more energy to harness than it provides? Are renewable resources always renewable, or can they become non-renewable? Why aren't renewable resources used for everything that we use energy for?