The insulation in an old house is able to hold in 12,000 J of the 36,000 J that were used to heat it up. How energy efficient is this insulation?

A car travels at a speed of 48.7mi/hr. how long will it take for the car to travel 5000 ft

A story without a conflict would be very

To check if a stovetop is hot, you place you hand near the top of the stove and feel that it is warm without touching it. You can feel the heat from the stove top because of? B - radiation C - convection D - kinetic energy

A person applies a 132 N force to a 83.3 kg sled resting on frictionless ice. At what rate will the sled accelerate?

Compared to oceanic crust, continental crust is generally

If you lived downhill from a volcano and lava started to flow toward your home what could happen?

A battleship simultaneously fires two shells toward two identical enemy ships. One shell hits ship A, which is close by, and the other hits ship B, which is farther away. The two shells are fired at the same speed.

A horse canters away from its trainer in a straight line, moving 37 m away in 9.1 s. It then turns abruptly and gallops halfway back in 1.8 s. Calculate its average speed for the entire trip. Express your answer using two significant figures.

An early submersible craft for deep-sea exploration was raised and lowered by a cable from a ship. When the craft was stationary, the tension in the cable was 7000 N {/rm N}.

What are the components of earths life support system