A concrete cube of side 0.50 m and uniform density 2.0 x 103 kg m-3 is lifted 3.0 m vertically by a crane. what is the change in potential energy of the cube

Put these components of wind energy production in order from first to last. The wind spins turbines. A wind of at least 15 mph is blowing. The spinning of the turbines is used to create electricity.

Why do all the electrons in an iron atom not settle together into the lowest energy state? because.?

Suppose your hair grows at the rate of 1/26 inches per day. Find the rate at which it rows in nanometers per second. Because the distance between atoms in a molecule is on the order of 0.

Chance drives her scooter 7 kilometers north. She stops for lunch and the drives 5 kilometers east. What distance did she cover? What was her displacement?

If mass = 30kg, gravity = 10 N/kg and height is 2m of a car. Calculate the gravitational potential energy.

You have just installed a new sound card in your system, and Windows says the card installed with no errors. When you plug up the speakers and try to play a music CD, you hear no sound. What is the first thing you should do? The second thing? a.

Why does convection occur only in fluids?

The force of repulsion between two like-charged particles will increase if

An automobile tire having a temperature of -2.6°C (a cold tire on a cold day) is filled to a gauge pressure of 24 lb/in^2 What would be the gauge pressure in the tire when its temperature rises to 43◦C?

Compared to that of a plane on the ground, Earth's gravitational pull on a plane 7 miles above Earth is approximately A) zero. B) the same. C) half as much. D) twice as much.