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A thin rod has a length of 0.25 meter and rotates in a circle on a frictionless tabletop. The axis is perpendicular to the length of the rod at one of its ends. The rod has an angular velocity of 0.35 rad/s and a moment of inertia of 9.00 x 10-4 kg•m2. A bug standing on the axis decides to crawl out to the other end of the rod. When the bug (mass = 4.2 x 10-3 kilogram) gets where it's going, evaluate what is the angular velocity of the rod?
A piano tuner stretches a steel piano wire with a tension of 964N . The wire is 0.400m long and has a mass of 3.60g. What is the frequency of its fundamental mode of vibration
An L-R-C series circuit is connected to a120?Hz ac source that has vrms = 80.0V. What average power is delivered to the circuit by the source
A wire coil is connected to a DC power supply of 12.0 volts. The current in the coil is measured to be 375 mA. What is the resistance of the wire coil
If the power output of a 630 kHz radio station is 50.0 kW, how many photons per second are produced
A motorist drives along a straight road at a constant speed of 21.5 m/s. Just as she passes a parked motorcycle police officer, the officer starts to accelerate at 4.00 m/s2 to overtake her. Assume that the officer maintains this acceleration. Decide..
a disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. at one
a football is punted with an initial velocity of 26.1 ms and an initial angle of 53.1o. what is its hang time the time
A 55 kg woman cheats on her diet and eats a 602 Calorie (602 kcal) jelly donut for breakfast. If the human body is only 25% efficient in converting chemical energy to mechanical energy, how many stairs must the woman climb to work off her breakfas..
A clever physics professor designs a cat-cannon and uses it to launch a 5 kilogram cat horizontally off the top of the sears tower, Find with what initial velocity must the cat be launched
Two disks, (Disk A and Disk B) each having the same mass and Inertia of I=1/2MR^2 are rolling on the floor and then up ramps. The ramp for Disk A has friction, How much farther does it roll
A constant current of I = 15 A exists in a solenoid whose inductance is L = 42.2 H. The current is then reduced to zero in a certain amount of time. If the current goes from 15 to 0 A in a time of 75 ms, what is the emf induced in the solenoid
A 16.23-cm-long, 173 g rod is pivoted at one end. A 16 g ball of clay is stuck on the other end. What is the period if the rod and clay swing as a pendulum
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