What is the total mechanical energy of a 200 kg roller coaster moving with a velocity of 16 m/s at a height of 18 m above the ground?

The fast server in women's tennis is Venus Williams, who recorded a serve of 130 mi/h (209 km/h) in 2007 If her racket pushed on the ball for a distance of 0.11 m, what was the average acceleration of the ball during her serve?

As the mass oscillates on a spring, when is displacement at its maximum and velocity equal to zero? A. when it is partially compressed B. when it is at the equilibrium position C. when it is fully stretched D. when it is at near rest

The first division of political parties came about because of what issue

Which of the following is a greenhouse gas? Oxygen Hydrogen Nitrogen Water vapor

Seasons are a result of: Earth's rotation on its axis Earth's tilt on its axis global air circulation patterns global humidity circulation patterns

A device that changes thermal energy into mechanical energy

You and your roommate are moving to a city 380 mimi away. Your roommate drives a rental truck at a constant 55 mi/hmi/h, and you drive your car at 65 mi/hmi/h. The two of you begin the trip at the same instant.

Which planet is 92,897,000 miles from the sun?

Stretching or drawing a solid into a wire is which of the following physical properties A) ductility B) solubility C) malleability D) conductivity

How well does the infographic ""Plastics in the Ocean"" present a solution to the problem it describes?