Describe the energy transformations that occur when a piece of wood is burned

Alana summarized what happens when a ball sitting on top of a grassy hill rolls down the hill. The motionless ball has potential energy. Once the ball starts to roll down the hill, new kinetic energy is made.

A charge Q generates an electric field of strength E at a distance d away. Determine the electric field strength at d and 2d, respectively:

What is the phenomenon not explained by the equation e=mc2

An object weighs 432 n on the surface of the earth. the earth has radius r. if the object is raised to a height of 3r above the earth's surface, what is its weight

The highest-pitched sound humans can hear have a wavelength of 0.017 m in air. What is the frequency of these sound waves if their wave speed is 340.0 m/s?

You push a 45 kg wooden box across a wooden floor at a constant speed of 1.0 m/s. The coefficient of kinetic friction is 0.25. Now you double the force on the box. How long would it take for the velocity of the crate to double to 2.0 m/s

What is the middle layer of earth called

If 10 calories of energy are added to 2 grams of ice at - 30° C, calculate the final temperature of the ice. (Notice that the specific heat of ice is different from that of water.) T. F = -20° C -30° C 30° C 40° C

Are microwaves and radio waves faster or slower than other types of electromagnetic energy?

Write 5 sentences on the importance of including vegetables in your diet.