Auniform, solid disk with mass m and radius r is pivoted about a horizontal axis through its center. a small object of the same mass m is glued to the rim of the disk. if the disk is released from rest with small object at the end of a horizontal radius, find the angular speed when the small object is directly below the axis.

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)

What you see with your eyes is a form of energy. a. light b. heat c. chemical d. electrical