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Which is the larger unit of distance, the light-year or the parsec? How much larger is one than the other? At what two points on the celestial sphere does the Sun provide Earth with exactly 12 hours of daylight?
A rifle with a barrel length of 65 cm fires a 9 g bullet with a horizontal speed of 380 m/s. find resistive force does the wood exert on the bullet
a cylinder contains 4.56 mol of helium gas at a temperature of 310 k. the molar specific heat of helium at con- stant
In the typical X-ray lamp. The electrons are accelearated in the potential difference of 10000V before hitting the water cooled electrode. Find the shortest wavelength of X-rays produced in this lamp.
A mass of 200 grams stretches a spring 5 cm. The mass is the set in motion from its equilibrium position with an initial downward velocity of 20 cm/sec. assuming that there is no damping, decide the position of the mass at any time t, and decide the ..
The clapper is a small, 1.8 kg mass attached to one end of a slender rod that has length L and negligible mass. The other end of the rod is attached to the inside of the bell
The height of a tower is measured with attaching a simple pendulum to its ceiling, whose length is barely enough to stay off the floor. The pendulum is let go from a small angle, and takes12 s to return to the similar location it started from.
In a particular x-ray tube, an electron approaches the target moving at 1.10 108 m/s. It slows down on being deflected by a nucleus of the target, compute the final speed of the electron
A man pushes a lawn mower on a level lawn with a force of 187 N. If 51 percent of the force is directed horizontally, how much work is completed by the man in pushing the mower 7.0 m.
a concave spherical mirror forms an inverted image 4.00 times larger than the object. assuming the distance between
A vertical scale on a spring balance reads from 0 to 245 rm{N}. The scale has the length of 11.0 rm{cm} from the 0 to 245 rm{N} reading. A fish hanging from bottom of the spring oscillates vertically at a frequency of 3.00 rm{Hz}.Ignoring the mass..
A ray of light is incident on a plane surface separating two sheets of glass with refractive indexes 1.65 and 1.61. Compute the angle of refraction
Household wiring often uses 2.0 millimeter diameter copper wires. Determine the potential difference across a 19-m-long, 2.0-mm-diameter copper wire carrying a 7.6 Amp current
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