12) How much work is done if a machine exerts 850 watts of power in 30 seconds?
A)
28.3]
B)
283)
2550J
D)
25,500J

You are sitting on the beach and wondering about the properties of mechanical waves. describe them in terms of ocean waves.

Which governments provide garbage collection services to homes and businesses

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.