Which of the following happens in a steam engine?

A. Fuel is burned outside the engine.

B. Heat is converted into work.

C. Hot steam pushes a piston.

D. all of the above

In nuclear fission mass is transformed into

The smallest particle into which an element can be divided and still have the properties of that element is called an atom.

5. The change in isotopes over time due to the emission of radioactive particles is known as A. absolute-age dating. B. half-life. C. radiometric dating. D. radioactive decay.

If a windbreak can reduce the speed of wind for distances up to 30 times the height of the trees, how far would these trees reduce the wind speed? 47 m 51 m 470 m 510 m

Two conducting spheres, one having twice the diameter of the other, are separated by a distance that is large compared to their diameters. The smaller sphere has charge q and the larger sphere is uncharged.

A block accelerates at 3.7 m/s2 down a plane inclined at an angle 27.0. Find μk between the block and the in- clined plane. The acceleration of gravity is 9.81 m/s2.

What does the doppler effect tell astronomers about the universe

All group I metals react with H2O to a form a metal hydroxide and hydrogen gas. Which of these will react the fastest?

In transverse waves, the medium moves perpendicular to the direction of energy transport. true false

A horse is running at 12m/s accelerated to 38m/s in 10 seconds. What is the horses acceleration.