How many calories of heat are needed to change the temperature of 550g of water from 12'C to 16'C

What type of energy is cracking an egg

Some plants disperse their seeds when the fruit splits and contracts, propelling the seeds through the air. The trajectory of these seeds can be determined with a high-speed camera.

What is formed at the head of the glacier, high on the mountain, as ice plucks pieces of rock out of the mountain? A. lateral moraine B. drumlin C. glacial lake D.

Why would knowing the characteristics of circuits be important in designing electrical circuits?

A wave has a wave length of 20mm and a frequency of 5 hertz. What is the speed?

What's the net force acting on an 18-kg object if an acceleration of 3.0 m/s2 is produced?

What type of force slows you down as you slide across the floor? A. Strong nuclear force B. Friction C. Magnetic force D. Gravity

Scenario A: A ramp is used to lift a refrigerator a height of 12 m with a force of 110 N. The ramp is at an angle of 50° to the ground. Scenario B: A ramp is used to lift a refrigerator a height of 13 m with a force of 120 N.

The sun is 30 degrees above the horizon. it makes a 51 m long shadow of a tall tree. part a how high is the tree?

What can destroy stuff yet does not have any mass