Determine the kinetic energy of a 7.5 kg roller coaster car that is moving with a speed of 42.8 m/s.

Regan has an empty glass cup. it has a mass of 0.3 kg. she drops the cup on the ground and it shatters into several pieces. if she collected all of the pieces of the cup, how much mass would all of the pieces have combined?

2. What was the role of women as industry increased? A. They gained the vote, B. They became industry leaders, e. They led the household D. They can for government office,

What were the patterns that people saw in the sky long ago?

A fellow student of mathematical bent tells you that the wave function of a traveling wave on a thin rope is y (x, t) = 2.30mmcos[ (6.98rad/m) x + (742rad/s) t]. Being more practical-minded, you measure the rope to have a length of 1.

A scientific theory is: a. an explanation supported by a very large amount of experimental evidence b. an explanation that cannot be modified in light of new experimental evidence c. little more than an educated guess d. the same as a hypothesis e.

Both high-side pressures and low-side pressures are low with the engine running and the selector set to the air-conditioning position. Technician A says that the system is undercharged. Technician B says the cooling fan could be inoperative.

Who came first the youngest, loudest, closer to parent, most beautiful

Two firefighters are fighting a fire with identical water hoses and nozzles, except that one is holding the hose straight so that the water leaves the nozzle in the same direction it comes, while the other holds it backward so that the water makes a

What is the relationship between the mass of the counterweight and the amount of work done on the projectile?

The steps in the formation of sedimentary rocks are listed below in an incorrect order. 1. Rocks are weathered. 2. The sediments are compacted together. 3. They are deposited in layers. 4. Small pieces of rocks are carried by water.