Kinetic energy is the energy an object has because it is A. At rest B. Moving C. Stretched D. Above the ground

Which of the changes occurs when energy is absorbed?

A machine runs for 50 seconds with a steady power output of 100 watts. How many joules of work does the machine produce in those 90 seconds?

A lithium atom has three electrons. a fluorine atom has nine protons and nine electrons, with seven electrons in its outer energy level.

Why is it better to build and test a prototype of a product than to pruduce tens of thousands of the product and then test it?

According to Newton's third law of motion when a hammer strikes and exerts force on a nail to push it into a piece of wood the nail

The speedof a boat in still water is v. The boat is to make a round-trip ina river whose current travels at speed u.

Why are there so few working wave power stations?

Two abiotic factor that effect an ecosystem are;

Which of the following is explained by general relativity? A. How massive stellar objects can form a lens. B. Why moving muons decay more slowly than stationary ones C. Why atomic clocks tick more slowly when in motion D.

Imagine that you're observing a collision. Which action would allow you to determine whether the collision is inelastic? A. Measure the force of impact. B. Observe whether the colliding objects change their shape. C.