If an element has 4 valence electrons, how many dots will be in the elements dot diagram?

A baseball bat contacts a 0.145-kg baseball for 1.3*10-3 s The average force exerted by the bat on the ball is 8900 N.

I ship travels north at 15 km an hour for five hours what is the ships this placement in kilometers

Boyle's law states that, as the temperature of a gas increases, the volume increases.

If earth had two moons, how might this affect the way we see eclipses here on earth?

When something hits a table, why are different sounds produced?

34. A steam engine operates between 300K and 600K, the maximum possible efficiency of this engine is a. 100% b. 75% c. 50% d. 25%

How many moles of phosphorus trichloride are in 200 grams of the molecule? 62.67 mol 27,466.6 mol 1.46 mol 0.69 mol

A starship passes Earth at 80% of the speed of light and sends a drone ship forward at half the speed of light rela - tive to itself. Show that the drone travels at 93% of the speed of light relative to Earth.

Rubies are used in electronics

Two kids are on a merry-go-round that is turning at a constant rate. ariel is near the outer edge, and bob is closer to the center. ariel has answer (smaller, the same, or greater angular speed?