Smooth surface usually have less _ than rough surfuces

A. gravity

B. force

C. friction

D. Velocity

The ability of a muscle group to exert sub-maximal forces against a resistance over numerous contractions is called A. muscle endurance. B. muscle overload. C. muscle progression. D. muscle strength.

In an experiment to illustrate the propagation of sound through fluids, identical sound sources emitting at 440 Hz are used to propagate sound waves through mercury and through ethanol.

What is an essential characteristic of an object in equilibrium

A wave has a wavelength of 15 mm and a frequency of 7 hertz. What is its speed?

Changing the orbit of a spacecraft by firing thrusters is an example of

A book falls of the table and hits the floor. Is work done? Why?

A person of 83 kg is in an elevator. If the elevator is moving at a speed of 5 m/s, what's the person's kinetic energy? Keep 4 significant figures a 1,004 J b 1,038 c 1,280 J d 980 J e 1,435 J

What two equations can be used to determine the speed of a wave

Which force has an infinite range and is always attractive?

A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters how long is the ramp