Most people would consider a comfortable room temperature to be

A. 72 degrees C

B. 72 degrees F

C. 72 Kelvin

D. All of these are correct

When heated, most matter: expands contracts remains the same

What hot springs in the ocean floor

A pipe that is open at both ends and a tuning fork of frequency 240 Hz are being used as a fancy new thermometer, albeit one that utilizes sound interference. At room temperature (20.

A women lifts a 300 newton child a distance of 1.5 meters in 0.75 seconds. What is her power output in lifting the child?

Our friend Peter back at the zoo is using a crane to lift an elephant into an enclosure. The elephant weighs 10,000 N. The crane lifts the elephant 5 meters in 25 seconds. How much power was used to accomplish this task?

What step precedes the onset of hydrogen fusion in a star?

Manuel is holding a 5kg box how much force is he exerting on it

The object on the left is a discus, a piece of sports equipment made of a metal core, a plastic inner rim, and a metal outer rim. The object on the right is a flying disc, a piece of sports equipment made of plastic.

If you are sitting in your seat how are the forces acting on you?

At what speed does a falling hailstone travel? Does the speed depend on the distance that the hailstone falls?