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A baseball bat is 1 meter long and is made of wood with density 525 kg/m^3. Model the bat as two cylinders of equal length. The handle has a diameter of 0.70 cm and the business end has a diameter of 2.75 cm.
a) If the bat is held such that the point of rotation is 5.0 cm from the thin end, what is the rotational inertia of the bat?
b) Where approximately is the "sweet spot" of the bat?
c) If the bat is suspended at a point 5.0 cm from the end, what will be its period of oscillation?
d) If a forcing function is applied to the physical pendulum in part (c), what forcing frequency will cause the amplitude to become very large?
Power lines at 20,000V (rms) are connected to a utility pole transformer. Find the ratio of the number of turns in the primary to the number of turns in the secondary
a total of 25 rm kg of bananas on their way to the market. Assume that the springs have somehow not yet compressed to their maximum amount. Explain how much are the springs compressed?
The steps in the accounting cycle for a merchandising company are different from the accounting cycle for a service company. Discuss whether or not you agree or disagree. Find out whether or not the measurement of net income.
Someone puts an upright 0.450 m radius wreath made out of 30 windings of a string of lights, What is the induced current in the wreath from a N-S wire with a steady DC of 4.00 A2.00 m below the wreath
A person jumps up and down on a trampoline, while staying in contact with it. The motion is simple harmonic motion and it takes 1.90s to complete one cycle.
The specific heat of ice to is 2100 and the heat of fusion for ice is . How much time passes before ice starts to melt? From the time while the heating begins, how much time does it take before the temperature begins to rise above 0.
Two converging lenses (f1 = 9.00 cm and f2 = 6.00 cm) are separated by 18.0 cm. The lens on the left has the longer focal length. Locate the final image relative to the lens on the right
A kid fires water horizontally from a squirt gun held 1.6 above the ground. It hits other kid 2.4 away squares in the back, at a point 0.85 above the ground. What was the initial speed of the water.
A 23 m long copper wire,2.00 mm in diameter including insulation, is tightly wrapped in a single layer with adjacent coils touching, to form a solenoid of diameter 2.5 cm, What is the length of the solenoid
A four-turn circular wire coil of radius 0.495 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.415 T. what is the average induced emf in the wire during this time
if the barge can only be pushed 20-cm deeper into the water before water overflows to sink it, how various 400-kg horses can it carry.
A golf club striking a golf ball imparts a force of2100N over a time of 5.06×10?3s at an angle of 35.0? above the horizontal. What maximum height does the golf ball achieve after impact
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