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A space probe is traveling in outer space with a momentum that has a magnitude of 4.94 x 107 kg·m/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 1.24 x 106 N and a direction opposite to the probe's motion. It fires for a period of 9.68 s. Determine the momentum of the probe after the retrorocket ceases to fire.
A 15m uniform ladder weighing 500 N rests against a frictionless wall. The ladder makes 60 angles with the horizontal.
A spherical conducting shell has an interior radius of 18 cm and an outer radius of 21cm. The shell carries a net charge of -2.4 micro coulombs. A point charge of charge +6.4 micro coulombs is placed at the center of spherical shell.
Two uniform infinite sheets of electric charge densities 41.0 C/m2 and -41.0 C/m2 intersect at a right angle
calculate the total mechanical energy of the glider at any point in its motion. Calculate the maximum speed of glider.
35 kg girl is bouncing on a trampoline. Throughout a certain interval after leaving the surface of the trampoline, her kinetic energy decreases to 170 J from 470 J. How high does she rise during this interval? Avoid air resistance.
A photon with a wavelength 4.40 scatters from an electron initially at rest. Find out the wavelength of the scattered photon when the scattered electron has its utmost kinetic energy. Kmax = 2.37*20^-14.
Now suppose that the two masses continue to move at the speed from Part A until they encounter a rough surface. The coefficient of friction between the masses and the surface is . If the blocks come to rest after a distance, which of following equ..
The temperature of the surface of a certain star is 7500 K. Most hydrogen atoms at surface of the star are in the electronic ground state. What is the approximate fraction of hydrogen atoms that are in the first excited state (and therefore could ..
Neptune has a mass 17.20 times larger than that of Earth and a radius 3.88 times larger. A person weighing 140 lb on the Earth would weigh how much on Neptune.
Density of Aluminium is 2.7g/cm3 or 2.7g/ml. How heavy (in grams) would be the coke can if instead of soda it would be filled in with aluminium? The volume of a soda can is 303 ml.
A capacitor that is initially uncharged is connected in series with a resistor and a 406.7V emf source with negligible internal resistance, What is the resistance of the resistor
A ski gondola is connected to the top of a hill by a steel cable of length 680 m and diameter 1.5cm. As gondola comes to the end of its run, it bumps into the terminal and sends a wave pulse along cable. It is observed that it took 14 s for the p..
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