What was the likely environment where this sedimentary rock was deposited? coral reef swamp shallow ocean river glacier

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.

How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.