Some energy is free but other types must be bought true or false

An ice cube is placed in a microwave oven. Suppose the oven delivers 125 W of power to the ice cube and that it takes 33200 J to melt it. How long does it take for the ice cube to melt?

Why was Wegner's theory of continental drift not accepted by the scientific community? he had no friends in the community he could not explain how the continents moved his suggestion of land bridges was not accepted he could not explain why the

Determine the amount of potential energy of a 5.0Kg book that is moved to three different shelves on a bookcase. The height of each shelf is 1.0 m, 1.5 m, and 2.0 m.

How and why an can be fertilized by one sperm only

Herman is a slim man who is 5 feet 10 inches tall and weighs 140 pounds. However, he has diabetes, a disease that usually occurs in obese individuals. Which most likely explains Herman's condition? Obesity can correlate to diabetes.

Velocity is: а - speed and direction. b - distance divided by time. c - always the same as speed. distance multiplied by time. d - distance multiplied by time

The gauge pressure in each of the four tires of an automobile is 230 kpa. if each tire has a "footprint" of 180 cm2 (area touching the ground), determine the mass of the car.

A bus travels 20 KM and 30 minutes what is average speed of the bus

What is the total number of atoms in the following formula? CaBr2

A lifeguard on a beach observes that waves have a speed of 7 m/s and a distance of 4.6m between wave crests. what is the period of the wave motion?