A skydiver has a mass of 50.5 kg. What is the force of weight on the skydiver? F = [?] N

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?

What produces wave a)sound b) heats c)transfer of energy d)vibrations

How is the atomic number of a nucleus changed by alpha decay