19. A wrecking ball suspended from a crane breaks loose and falls to the ground with an acceleration of 10 m/s2. It hits the ground with a velocity of 30m/s. How long did it take
to hit the ground?

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?

If it 8 inch candle burns at 7/10 inch per hour and a 6 inch candle burns at 1/5 inch per hour after how many hours would both candles be the same height