Which class of elements is most effective at conducting electricity and heat

Why is specific heat different for different materials

A model airplane with mass 0.741 kg is tethered to the ground by a wire so that it flies in a horizontal circle 30.5 m in radius. The airplane engine provides a net thrust of 0.804 N perpendicular to the tethering wire.

If I hit myself, and it hurts, does that make me weak or strong? A. Yes B. No

Counting your pulse can be most accurately performed by applying light pressure to an artery that is close to the surface of the skin. True or false?

Which of the following statement best define tides? A. When waves get bigger because of an approaching storm B. The rise and fall of ocean water that occurs about every 12.5 hours C. The rise of ocean water that occurs 12 times a day D.

A sphere is charged with electrons to -1 * 10-5 C. How many electrons make up this charge? The elemental charge is 1.6 * 10-19 C.

Which of the following choices correctly identifies the process created by moving a magnet through a conducting loop? a. conduction b. magnetic field generation c. trasformation d. electromagnetic induction

12. One object has half the mass of another object. The first object also has half the - --. a. inertia b. velocity c. gravitational acceleration d. all of these

What happens to an object as its kinetic energy increases?

1913.0-14.6 * 10^2= Give the answer in scientific notation