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A projectile launched vertically from the plane of the Moon rises to an altitude of 370 kilometer. Determine what was the projectile's initial speed? (Do not suppose the acceleration of gravity remains constant during the projectile's flight.)
A small rubber wheel is used to drive a large pottery wheel. The two wheels are mounted so that their circular edges touch. Thesmall wheel has a radius of 2.0 cm and accelerates at the rate of7.4 rad/s2, and it is incontact with the pottery wheel (..
A back-reflection Laue pattern is made of an aluminum crystal at 50 kv. What orders of reflection are present in the beam diffracted by these planes
The filament of an incandandescent light bulb is a very thin solid cylindrical shape, with a total length of 450 mm and a diameter of 0.45 mm. What is the peak wavelength emitted by this light bulb
in the electron gun pictured a potential difference of 12.0 kv is found to bring electrons from rest at the cathode to
An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 5.5× 104 kg, and the force causes its speed to change from 7300 to 5700m/s.
An aluminum wire has the same resistance as a copper wire of the same length. Find the ratio of the aluminum wire's diameter tothe copper wire's diameter.
The displacement vector for a 15.0 second interval of a jetairplane's flight is ( 2.15e+3, -2430) m. What is the magnitude of the average velocity
A 0.96-m-long metal rod has a radius of 2.1 cm and a resistance of 6.3 · 10 ? 5 ?. What is the resistivity of the metal
A certain kind of glass has an index of refraction of 1.640 for blue light of wavelength 430 nm and an index of 1.595 for red light of wavelength 680 nm. what is the angle between the two beams inside the glass
a certain freely falling object requires 1.95 s to travel the last 36.5 m before it hits the ground. from what height
The magnetic force exerted on a 3.0-m segment of straight wire is 1.9 N. What is the angle between the wire and the magnetic field
A two-slit interference pattern is formed using monochromatic laser light that has a wavelength of 640 nm. At the first minimum from the central maximum, what is the path-length difference between the light coming from each of the slits?
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