Two blocks are arranged at the ends of a massless cord over a frictionless massless pulley as shown in the figure. Assume the system starts
from rest. When the masses have moved a distance of 0.433 m, their speed is 1.32 m/s.
The acceleration of gravity is 9.8 m/s
2
.
4 kg
2.6 kg
µ
What is the coefficient of friction between
m2 and the table?

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

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.