Energy can be changefrom one formto another. Changes. In the form of energy are called energy conversions identify which best describes the energy used to plunk guitar strings to make sound

A train travels 68 kilometers in 4 hours, and then 91 kilometers in 2 hours. What is its average speed?

What force must be used to do 224 Joules of work on an object over a distance of 32 meters?

A newspaper and a metal lunchbox are sitting in sun. Why does metal lunchbox feel hotter to touch than a newspaper? A. The metal lunchbox has a higher conductivity. B. the metal lunchbox has a higher latent heat of fusion. C.

When a person rides a bicycle past a tree while wearing a helmet, the person is moving relative to only the bicycle only the tree the tree and the bicycle the bicycle, the tree, and the helmet

State the molecular theory of magnetism

If the Sun were twice as massive, its pull on Mars would be A. unchanged. B. twice. C. half. D. four times as much.

A pendulum makes 40 vibrations in 20 seconds. Calculate its period?

A construction crane lifts a prestressed concrete beam weighing 14 short tons from the ground to the top of piers that are 24 ft above the ground. Determine the amount of work done considering the beam. Take the value of g as 32.174 ft/s2.

Are passing through optical Centre deviate why

5) A student is trying to decide what to wear. His bedroom is at 20.0°C. His skin temperature is 35.0°C. The area of his exposed skin is 1.50 m2. People all over the world have skin that is dark in the infrared, with emissivity about 0.900.