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A 1.05 kg mass is attached to a light cord that is wrapped around a pulley of radius 2.65 cm, which turns with negligible friction. The mass falls at a constant acceleration of 2.65 m/s2. Find the moment of inertia of the pulley.
A solenoid 3.0 cm long consists of 8942 loops of wire. If the magnetic field inside the solenoid is 1.0 T, what is the magnitude of the current that flows through it
In an action-adventure film, the hero is supposed to throw a grenade from his car, which is going 94.0 km/h, to his enemy's car, which is going 112 km/h. Find the magnitude of the velocity relative to the earth
A 220 g top spinning at 14 rev/s makes an angle of 30° to the vertical and precesses at a rate of 1 rev per 8.0 s. what is the moment of inertia of the top
A point source of sound waves emits sound uniformly in all directions. What is the power output of the source
q1. a 0.070 kg arrow hits a target at 21.10 ms and penetrates 4.90 cm before stopping. what average force did the
A string is attached to a rigid support and the cylinder allowed to drop from rest. Find out the acceleration of the cylinder.
A 2.71 g sample of KCl from the chemistry stockroom is found to be radioactive, and it is decaying at a constant rate of 4490 Bq. Calculate the half-life of this nuclide
Calculate the total number of electrons bombarding the target of an X-ray tube operated at 100 mA for 0.1 seconds
Suppose the skin temperature of a naked person is 34.3 °C when the person is standing inside a room whose temperature is 21.3 °C. Assuming the emissivity is 0.673, find the net loss of radiant power from the body
An ac generator supplies a peak (not rms) voltage of 120.0 V at 60.0 Hz. What is the average power dissipated in the circuit
The magnetic field in an electromagnetic wave has a peak value given by B = 3.3uT. Find the peak intensity. Find average intensity
A crate travels 30 m due to a constant force of 350 N. The friction can be neglected for the first 15 m. What is the final speed of the crate if it weighs 110 kg
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