6. How did a change in voltage affect the use of an electromagnet?

4. Solid 'X' turns into a liquid at 80 0C and into a gas at 140 0C. Describe the changes in the particles of X when it is heated from . 85 0C to 145 0Cm the 0 is degree

An isolated box with volume V is initially split into two halves by a partition. One side has gas at temperature T with pressure P and number of molecules N, and the other side has nothing (it is a void).

Who is galileo galilei

Suppose that a block is pulled 16 meters across a floor. What amount of work is done if the force used to drag the block is 22 N? A. 352 J B. 200 J C. 220 J D. 330 J

What is the definition for the word energy?

Sound waves are mechanical waves in which the particles in the medium vibrate ina direction parrallel to the direction of energy transport. What is another name of the type of wave that transfers energy in this way?

A sound from a source has an intensity of 270 db when it is 1 m from the source. what is the intensity of the sound when it is 3 m from the source?

What experimental term is it when a ruler is dropped to the floor?

Where is most of the energy from incoming waves focused? A. spit B. headland C. underwater D. barrier beach

Exoplanets (planets outside our solar system) are an active area of modern research. Suppose you read an article stating that there is a newly discovered planetary system with three planets.