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The Greenland Ice Sheet covers an area of about 1 .7 . 1 06 km2 with a mean thickness of about 1 .4 km. Assume that the annual production of new ice for the Greenland Ice Sheet is about 1 0 cm.
What is the renewal time (years) of the Greenland Ice Sheet?
A Federation starship ( 2.10×106kgkg ) uses its tractor beam to pull a shuttlecraft ( 2.10×104kgkg ) aboard from a distance of 15.0kmkm away. The tractor beam exerts a constant force of 4.0×104N4.0 \times 10^{4}\;{\rm N} on the shuttlecraft. Both spa..
150 ml of water at 5.00C is placed in the freezer compartment of a refrigerator with a coefficient of performance of 6.00. How much heat energy is exhausted into the room
White light is shone on a very thin layer of ice (n = 1.31), and above the ice layer, What is the thickness of the ice layer
A ball rolls down a hill 100 m. The hill is inclined 60 degrees. what is the final rotational speed of the ball
The current in an electron beam in a cathode-ray tube is measured to be 70 uA. How many electrons hit the screen in 5.0s
A box of mass 38.5 kg is sitting on a horizontal table top with a coefficient of kinetic friction between the box and the surface of 0.49. Find the magnitude of the acceleration of the box on the table
A golf ball is struck off a tee (negligible height and air resistance) with initial velocity of 50 meters per second at an angle of 30 degrees above the horizontal. Illustrate what will be the vertical component of velocity after 2.5 seconds?
In a certain region, the earth's magnetic field has a magnitude of 4.8 x 10-5 T and is directed north at an angle of 66° below the horizontal. Determine the bullet's electric charge
The displacement of a standing wave on a string is given by D = 9.9 sin(0.55x)cos(56t), where x and D are in centimeters and t is in seconds. What is the distance (cm) between nodes
A standing observer perceives a train whistle to have a frequency of 300 Hz. compute the frequency of the sound waves emitted from the train
250 kg ball is dropped to the floor from a height of 1.0 m and upon rebounding, reaches a height of .60 m. What is the impulse delivered to the ball by the floor?
A car travelling east at 41.2 m/s passes a trooper hiding at the roadside. The driver uniformly reduces his speed to 25 m/s in 3.90 s.
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