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Q. A 3.06 kg block slides down a frictionless plane inclined 18.6' to the horizontal. If the length of the plane's surface is 1.43 m, how much work is done, and by what force?
Q. A car is traveling at 46.0 km/h on a flat highway.
(a) If the coefficient of friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop?
What is the stopping distance when the surface is dry and the coefficient of friction is 0.600?
What is tension in each of the cables
A loudspeaker is placed between two observers who are 120 m apart, along line connecting them. If one observer records a sound level of 52.8 dB and the other records a sound level of 83.5 dB, how far is the speaker from each observer? Enter the longe..
Find out d, the distance between the photogates, using the times and glider length. There is two ways to find this for the up and down directions.
Pete slides a crate up a ramp with constant speed at an angle of 27 degrees by exerting a 133 N force parallel to the ramp. How much work has been completed against gravity when the crate is raised a vertical distance of 1.6 m? The coefficient of fri..
A professor's office door is 0.9 wide, 2.0 high, and 4 thick; has a mass of 25; and pivots on frictionless hinges. A "door closer" is attached to door and top of the door frame.
A 210 km long high-voltage transmission line 2 cm in diameter carries a steady current of 960 A. If the conductor is copper with a free charge density of 9.0 x10^28 electrons per cubic meter, how many years does it take one electron to travel the ..
Two narrow slits 41 µm apart are illuminated with light of a wavelength 604 nm. What is the angle of the m=3 bright fringe in degrees.
A hollow aluminium cylinder 20 cm deep has an internal capacity of 2.000 L at 20.00C. It is completely filled with turpentine and then warmed to 80.00C. (i) How much turpentine overflows? (ii) If it is then cooled back to 20.00 C, how far below th..
How fast (in ) must a centrifuge rotate if a particle 5.4 from the axis of rotation is to experience the acceleration of 300000 's.
A 13g bullet traveling 221 m/s penetrates a 2 kg block of wood and emerges cleanly at 160 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges.
Find out the depth of the kerosene
Find out the speed of the satellite
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