Asmall fish (m = 0.5 kg) moving at 2 m/s is followed by a bigger fish (m = 5 kg) moving at 3 m/s. (show work)

a) what is the total momentum of this system before the big fish had its lunch?

b) what’s the momentum after lunch?

The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.

If state law mandates that elevators cannot accelerate more than 2.40 m/s2 or travel faster than 14.8 m/s , what is the minimum time in which an elevator can travel the 373 m from the ground floor to the observatory floor? ?

What are some important factors to consider when choosing a warm-up before your workout?