Write the mathematical relation between work, force and displacement ...

When you decrease the length of the effort arm on a lever which of the following happens to effort force? A. Force will decrease B. Force will increase C. Force will vary D. Force will remain the same.

An object's speed is determined from the object's

One person raises a 100 lb. box 5 ft. to load on a truck. Another person loads a similar box in half the time. Which statements are correct? Both men did equal work. The first person did more work. The second person did more work.

What makes a submarine dive? pumping air into its tanks to increase its density adding water to its tanks to increase its density pumping air into its tanks to decrease its density adding water to its tanks to decrease its density

Helium atoms emit light at several wavelengths. Light from a helium lamp illuminates a diffraction grating and is observed on a screen 50.00 cm behind the grating. The emission at wavelength 501.5 nm creates a first-order bright fringe 21.

Why does the multimeter reading decrease as the frequency increases?

A ray of yellow sodium light enters water from air with an angle of incidence of 45°. What is the angle of refraction?

You push a 5-kg box across the floor with a force of 25N. How far do you have to push the box to do 63J of work?

The amount of gravity between 1kg of lead and Earth is ___ the amount of gravity between 1kg of marshmallows and Earth. a. greater than b. less than c. the same as d. none of the above

What is the best way to dry a thermometer servsafe?