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During takeoff, an airplane goes from 0 to 36 m/s in 14 s.
(a) What is its acceleration?
(b) How fast is it going after 3 s?
(c) How far has it traveled by the time it reaches 36 m/s?
The mass of the blue (dark) puck in the figure below is 18.3% greater than the mass of the green (light) one. Calculate the speed of the blue puck after the collision
a string of length 1.2m vibrates in 7 loops at a frequency of 70hz. show worka. what is the wavelength?b. at what
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the electric motor of a heat pump transfers energy as heat from the outdoors which is at -6.1degc to a room which is at
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Suppose that we have a mixture of N2 (g) and O2 (g) of unknown composition whose total pressure is 385 torr. If all the oxygen as is removed from the mixture by reaction with phosphorus
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Two metal disks, one with radius R_1 = 2.55 cm and mass M_1 = 0.850 kg and the other with radius R_2 = 4.90 cm and mass M_2 = 1.57 kg, What is the total moment of inertia of the two disks
The bungee cord acts just like a coil extension spring with constant k = 4 lbf/ft and its unstretched length is L= 6 ft. At first the cord is loosely dangling but then becomes taut and goes into tension as soon as the skaters
A water tower supplies water through the plumbing in a house. A 2.54-cm-diameter faucet in the house can fill a cylindrical container with a diameter of 53 cm and a height of 36 cm in 12 s. How high above the faucet is the top of the water in the t..
A rocket is fired at a speed of 82.0 m/s from ground level, at an angle of 38.0 ° above the horizontal, By how much does the rocket clear the top of the wall
A spear fisherman estimates that a trout is 1.6 m below the water's surface. What is the actual depth of the fish
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