A parachute on a racing dragster opens and changes the speed of the car from 85 m/sec to 45 m/sec in a period of 4.5 seconds. What is the acceleration of the dragster?

Describe what it means to view something from a frame of reference

April moves from a position that is 5 m north of her front door to a new position that is 3 m south of her front door. If this movement takes her 4 seconds what is her velocity?

What is the acceleration of a skier that goes from 2.50 m/s to 14.5 m/s while traveling 505 m down a slope?

A bus accelerates uniformly from 54 km/h to 72 km/h in 10. calculate acceleration in m/s

Which statement best describes the movement of atoms in a solid?

A batter hits a baseball with a bat. The bat exerts a force on the ball. Does the ball exert a force on the bat?

In a nuclear power plant, the temperature of the water in the reactor is above 100°C because of what?

Determine the total mechanical energy of a 250 g baseball if it has a velocity of 30 m/s when it leaves the pitcher's hand 1.2m above the ground.

When distances were carefully measured from Earth to globular clusters above and below the Milky Way plane (where our view of them is not obscured by interstellar dust and gas), their distribution was found to be

Imagine you transfer heat into a gas. This heat splits up in two different ways: Additional thermal energy making the gas hotter and "fuel" for the gas to do work. Let's suppose, 64% of the transferred heat transforms into thermal energy.