What equals the number of protons in an atom

Derivation for the distance travelled in the nth second, Sn = u + (n-1/2) a.

The periodic daily rise and fall of ocean water a. gravity b. high tide c. low tide d. the moon e. neap tide f. spring tide g. the sun h. tidal bore i. tidal range j. tides

A jet fighter flying at 300 m/s (just below the speed of sound) makes a turn of radius 2.25 km. (a) what is its centripetal acceleration in gs?

Which term, when multiplied by mass, equals density? A) weight B) distance c) power D) volume

What happens when the internal energy of a material increases?. A. its temperature will rise B. it will go through a phase change C. A and B D. A or B

Do all electromagnetic waves travel at the speed of light, carry energy, and travel through a vacuum?

The voltage across the primary winding is 350,000 V, and the voltage across the secondary winding is 17,500 V. If the secondary winding has 600 coils, how many coils are in the primary winding? 30 583 12000 332500

A 200 watt t. v. is used for 20 hours in a week. If it is used for four weeks then what is cost of electricity if rate is 5rs/kwh

In an experiment, the control is never changed by the scientist not important to the scientist not recorded by the scientist changed by the scientist

When you catch a baseball, what kind of work do you do, negative or positive? by catching the ball, what do you change? what energy does it gain or lose?