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Alice is located at a safe (infinite) distance from a Black Hole with a Mass of 10 solar masses. She drops a clock on a rope such that the clock sits a distance of 64 km from the black hole. If Alice measures 1 hour of time passing using a clock she is holding, how much time will have elapsed as measured by the clock near the black hole ?
A hydraulic lift is used to jack a 920 kg car 42 cm off the floor. The diameter of the output piston is 18 cm, and the input force is 350 N. What is the area of the input piston
a truck moving at 13.3 m/s hits a concrete wall. what is the average force exerted on the wrench by the wall
a 16.0 kg fish swimming at 1.40 ms suddenly gobbles up a 4.50 kg fish that is initially stationary. neglect any drag
the earths crust is broken up into a series of more-or-less rigid plates that slide around due to motion of material in
you are standing across the street from a tall building when the top of the building h 80 m is hit by lightning and a
A projectile is fired with an initial speed of 65.9 m/s at an angle of 37.8 degree above the horizontal on a long flat firing range. Determine the total horizontal distance covered (that is, the range)
a thin uniformly chargde rod has a length l10cm and a linear charge density lambda 5x106 ecm. e is the change of an
a game show contestant won a prize by pushing a bowling ball 20 m using her nose.the amount of work done was 1470 j. how much force did the contestant exert on the ball
Consider the Earth and a cloud layer 900 m above the planet to be the plates of a parallel-plate capacitor. (a) If the cloud layer has an area of 1.0 km2 = 1000000 m2, what is the capacitance?
A piece of metal weighs 53.6 N in air, 35.0 N in water, and 42.2 N in an unknown metal. What is the density of the unknown liquid
A spherical balloon is made from a material whose mass is 3.00 kg. The thickness of the material is negligible compared to the 1.4 m radius of the balloon. Find the absolute pressure of the helium gas
A ceiling fan has five blades, each with a mass of 0.90 kg and a length of 0.66 m. what is the total rotational kinetic energy of the five blades
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