A roller coaster has a mass of 425 kg. It sits at the top of a hill with height 66 m. If it drops from this hill, how fast is it going when it reaches the bottom? (Assume there is no air resistance or friction.)

The unit for measuring electric power is the A. ampere. B. volt. C. ohm. D. watt.

Question 13 4 pts Whenever Eli walked past the sunglass kiosk right outside the mall food court, he would the smell cinnamon rolls baking in one of the food stands, and start to salivate.

Which of the following is NOT an effective pre-exercise energizing snack? A. Cookies B. Graham crackers C. Fig bars D. Bananas

Which set of items listed can be arranged to transform electrical energy into mechanical energy? a. motor, iron, wire b. magnet, wire, iron c. battery, wire, iron d. battery, magnet, heat eliminate?

Why does a moving object come to a stop on a frictional surface?

If element X has 17 protons, how many electrons does it have?

A 2.0-kilogram laboratory cart is sliding across a horizontal frictionless surface at a constant velocity of 4.0 meters per second east. What will be the cart's velocity after a 6.0-newton westward force acts on it for 2.

A boat floats with 25% of its volume under water. a. What is the boatâs density? b. If the boat was made from 500 kg of metal, what is the volume of the boat? (Assume the air in the boat has negligible mass and density) c.

Why does each mineral have their own property, different from every other mineral?

Earth's tallest mountain ranges are found at plate boundaries