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A 594 Ω resistor, an uncharged 1.3 μF capacitor, and a 6.53 V emf are connected in series. What is the current in milliamps after one time constant?
Light of wavelength 572 nm illuminates a single 0.72 mm wide slit. What is the width of the central maximum
The current flowing in one of the wires is twice that in the other wire. If the magnitude of the force on a 3.0-m length of one of the wires is 6.7 μN, what are the magnitudes of the two currents?
A 500 turn solenoid with a length of 20 cm and a radius of 3.0 cm carries a current of 3.0 A. A second coil of four turns is wrapped tightly about this solenoid so that it can be considered to have the same radius as the solenoid. Find when the curre..
A shotgun fires a large number of pellets upward, with some pellets traveling very nearly vertically and others as much as 1.0o from the vertical. suppose that the initial speed of the pellets is uniformly 150ms-1 and ignore air resistance.
The focal lengths of the objective and the eyepiece in a microscope are 0.29 cm and 2.50 cm, respectively. compute the final magnification of the microscope
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1380 Hz. The bird-watcher, but, hears a frequency of 1450 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
A shell, fired from a cannon, has a muzzle speed (the speed as it leaves the barrel) of 800 ft/s. The barrel makes an angle of 45o with the horizontal and, for ease; the barrel opening is assumed to be at ground level.
Light of wavelength 500 nm is incident on a thin sheet of plastic film (n= 1.50) in air. What is the thinnest the sheet can be
A crate whose mass is 360kg rests on the bed of a truck that is moving at a speed of v0 of 105 km/h. The driver applies the brakes and slows down to a speed v of 62 km/h in 17 s. What force (assumed constant) acts on the crate during this time?
A bucket of mass 2.00 kg is whirled in a vertical circle of radius 1.10 m. At the lowest point of its motion the tension in the rope supporting the bucket is 25.0 N. Find the speed of the bucket
A disk, a solid sphere, and a hollow spherical shell of the similar mass and radius are released at the similar time at the top of an inclined plane. Determine which object will finish the race the fastest and the slowest
a diver springs upward from a board that is 3.17 meters above the water. at the instant she contacts the water her
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