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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 ?
Two astronauts are, 6.761 m apart in their spaceship, speaking to each other. How far away from the Earth is the spaceship
A rocket for use in deep space is to be capable of boosting a total load (payload plus the rocket frame and engine) of 3.15 metric tons to a speed of 10 000 m/s. How much fuel plus oxidizer is required
A resistor and a capacitor areconnected in series to an ideal battery of constant terminalvoltage. At the moment contact is made with the battery, thevoltage across the capacitor is .....
A woman finds the front windshield of her car covered with ice at -12.0 °C. How much heat is required to melt the ice
What is the distance b between the beam formed by reflection off the top surface of the glass and the beam reflected off the bottom surface of the glass
A rocket weighs 1 x10^7 N while on the surface of the earth. Theignition of its engines results in a lift off force of 1.5 X 10^7N, what is the mass of the rocket
Approximately how much electricity is generated from nuclear power each year in the US? Given the average fuel burnup above, What is the energy input for enrichment (via centrifuge method) as a fraction of the electricity generated by the fuel produc..
A stone is dropped from the top of a cliff at t=0. The splash it makes when striking the water below is heard 6 seconds after it is dropped (i.e. at t=6 sec). How high is the cliff? (i.e. find 'h') suppose that the speed of sound in air is 340m/s ..
Michael drops a penny into a river from a bridge 44 m above the water. Another penny is thrown vertically down by his friend Jeremy 1.00 second after. What is the initial speed of the second stone
A coffee filter of mass 1.4 grams dropped from a height of 2 m reaches the ground with a velocity of 0.6 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter.
A car coasts (engine off) up a 30 degree grade. If the speed of the car is 25m/s at the bottom of the grade, Compute the time it takes for the car to come to rest
A 108m long train starts from rest (at t=0) and accelerates uniformly. At the same time (at t=0), a car moving with constant speed in the same direction reaches the back end of the train. find the cars speed and the trains acceleration
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