What is the correct equation for calculating the kinetic energy of an object

An 18-karat gold necklace is 75% gold by mass, 16% silver, and 9.0% copper. What is the mass, in grams, of the necklace if it contains 0.28oz of silver?

Which properties of a lava lamp are important to remember when modeling convection?

Explain the Big Bang Theory using the following terms: pressure, temperature, density, thermal energy and background radiation.

What type of galaxy has mostly old stars, without a lot of star formation?

Sierra did 500 J of work to move her couch. If she exerts 250 N of force on the couch, how far did she move it? (Work Fd) 0.5 m 2 m 250 m 750 m

A golf ball is hit with an initial velocity of 155 ft/s at an angle of 23 degrees with the horizontal. After 1.4 seconds, how far has the golf ball traveled horizontally and vertically?. a. 199.7 feet horizontally and 75.2 feet vertically. b. 60.

What is the kinetic energy (in joules) of a. 2 kg softball thrown at a speed of 40 m/sec? (answer should be in correct units)

How is the information sent back to earth by the robots?

During which change of state do atoms lose energy? sublimation freezing boiling melting

Why does the rotation of earth require people to establish times zones?