Find the tension in the wire holding up
Find the tension in the wire holding up the 80 kg sign below (assume the 30kg pole is attached to the wall with a pivot)
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A 100 g ball moving to the right at 4.0 m/s catches up and collides with a 450 g ball that is moving to the right at 1.2 m/s. If the collision is perfectly elastic what is the speed of the 1--g ball after collision
What does the scale read when the elevator descends at a constant speed of 2.0 m/s?
A string of 23 identical christmas tree lights are connected in a series of 120 V source. The string dissipates 73W. What power is dissipated in a single light?
The car reaches a temperature at which it radiates energy at this same rate. Treating the car as a perfect radiator (e = 1), find the temperature in Kelvin.
An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. What is the speed v_final of the electron when it is 10.0 cm from charge 1?
Assuming the diver has inhaled a negligible amount of air from the tank, what is the temperature of the ocean water?
Determine the fundamental frequency of standing waves set up on this wire. Determine the position of the 3rd node from the left end position for the standing wave associated with the 8th harmony.
The ratio of the kinetic energy to the potential energy of a certain object of mass m at a height of 40 m above ground level is 2:1. What is the speed of the object at the point?
Determine the magnitude of F1 and F2 shown such that the resultant will be a counterclockwise couple with a moment of 220 lb-ft.
The traces of the rain on the side windows of the car make an angle of 75.0° with the vertical. Find the velocity of the rain with respect to the following reference frames.
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