How many seconds does it take the alligator to speed up from
5 ms5 \,\dfrac{\text {m}}{\text s}
5
s

m


5, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction
to
35 ms35 \,\dfrac{\text {m}}{\text s}
35
s

m


35, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction
?

Which branches of natural science include the study of an organism that lived 10 million years ago

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:

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.