Why does an object above the ground have P. E.?

The propeller of an airplane is 9 feet in diameter. What is the speed of the tip of a propeller blade if the angular velocity of the propeller is 50 radians per second?

MOST high schools teach biology, then chemistry, then physics. What do you see as some of the disadvantages of the traditional sequence to both students and teachers.

What does energy give an object the ability to do

Select the correct answer. What influences the strength of an electric field? the speed of the test charge B. amount of charge on the test charge amount of charge on the source charge D. location of the test charge Reset Next

two individuals start the training program at the same time, but one is able to grow muscle faster an larger than other. what is the least likely explanation for this?

My Notes A basketball rolls across a classroom floor without slipping, with its center of mass moving at a certain speed. A block of ice of the same mass is set sliding across the floor with the same speed along a parallel line.

How does sound travel through waves?

Solve for real t: - 25=20t-5t^2

Contrast balanced and unbalanced forces.

A wave will travel only as long as it has energy