Giant cave systems have formed through the reaction of acids with the that make up limestone.

What function does a generator perform inside a power plant? A. The generator stores electrical energy for later use in homes and businesses. B. The generator transforms the mechanical energy of the turbine into electrical energy. C.

On your wedding day, you leave for the church 25 minutes before the ceremony is to begin. The church is 8 miles away. On the way, you have to make an unanticipated stop for construction work.

A drag racer leaves the starting line and increases its speed up to 200 miles per hour by the time it crosses the finish line. What must have changed? A. only its speed B. only its velocity C. both its speed and its velocity D.

There is an explosion on the surface of a lake and two people John and Nil hear its sound. John is 150m away on a boat and Nil is 150m below the surface of water. Who would hear the sound first and why?

Explain how you could determine the mass and volume of a gas

a box has mass 60 kg and it is lying on the earth surface occupying an area of 6000 CM square then the pressure exerted by it on the ground is equal to

A 16.0 kg canoe moving to the left at 12.5 m/s makes an elastic head-on collision with a 14.0 kg raft moving to the right at 16.0 m/s. After the collision, the raft moves to the left at 14.4 m/s. Disregard any effects of the water.

How many significant figures does the number 91010.0 have?

Convert 9.75 millimeters to centimeters.

A 4357 kg roller coaster car starts from rest at the top of a 36.5 m high track. determine the speed of the car at the top of a loop that is 10.8 m high