What formula is used to calculate average speed?

49. If an atom contains 13 protons, then it has (2.4) a. 13 electrons. b. 26 electrons. c. 13 neutrons. d. 26 neutrons,

A boy weighs 40 kilograms. He runs at a velocity of 4 meters per second north. Which is his momentum?

There are four groups of stars on the H-R diagram about 90% of the stars are in the?

What is the name of the body cavity of a sponge

Choose the correct energy transformation for a rock falling from a cliff.

If an astronomical light source were moving toward us, then what would be observed? (a) a blue shift (b) a shift toward longer wavelengths (c) a shift toward lower frequencies (d) a sonic boom

How much work must you do to push a 12 kg block of steel across a steel table at a steady speed of 1.3 m/s for 7.6 s? the coefficient of kinetic friction for steel on steel is 0.60?

An Archer needs to hit a bull's-eye On Target at eye level of 60 feet away is the Archer fires the arrow from the eye level with a speed of 47 ft/s at an angle of 25 degrees above the horizontal, will the arrow hit the target

What type of wave is a sound wave A. transverse wave B. longitudinal wave C. light wave D. elctromatic wave

Na+/k+-atpase is considered to be an electrogenic pump because