PLEASE HELP ASAP A 28.9-kg rock and a 46.6-kg rock are dropped from the same height and experience no significant air resistance. If it takes the 28.9-kg rock a time of 4 s to reach the ground, it must take the 46.6-kg rock s to hit the ground. Round your answer to one significant figure.

Like a key in a lock, the shape of the. must bind with the. of the recieving neuron

What sort of waves exhibit the doppler effect?

Agroup of monkeys is trying to cross the river in a rowboat. the maximum buoyant force on the rowboat is 2,000 n. the weight of the rowboat is 1,000 n. each monkey has a weight of 150 n. how many monkeys can safely cross in the rowboat at one time? explain your reasoning, including any calculations you used to find the answer.