Which of the following would have the most potential energy?

A.

a car moving along a flat road at 60 mph

В.

a rollercoaster that is at the bottom of a hill

C.

a ball rolling on a flat surface

D.

a rock sitting on the edge of a cliff

When a rocket lifts off what provides the momentum match of the upper lift

What kind of matter fills a ballon?

What absorbs nutrients that your body needs for food and takes it in the bloodstream

Where does the pattern of the tides come from?

If you travel from Yakima to Ellensburg (Yakima to Ellensburg is 50 miles) with a speed of 60 miles/hour for half of the trip and 80 miles/hour the other half of the trip. What is your Average speed? HINT: It is not 70 miles/hour:

What is the speed of a 50 g rock if its de Broglie wavelength is 3.32 x 10?

Leanne is riding a bike. The forward force from her pedalling is 18N. There is a backward force of 6N from friction and a backward force of 12N from air resistance. Does the speed of the bike increase, decrease or not change?

How are energy and speed related

11. Which of the following best explains velocity? A. The direction of an object in motion B. Only the change of direction of an object in motion C. The speed and direction of an object in motion D. The speed of an object in motion

Using 6400 km as the radius of Earth, calculate how high above Earth's surface you would have to be in order to weigh 1/16th of your current weight. Show all work leading to your answer OR describe your solution using 3 - 4 complete sentences.