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A student doing an experiment pours 0.160kg of heated copper shot into a 0.355-kg aluminum calorimeter cup containing 0.240kg of water. The cup and water are both initially at 20?C. The mixture (and the cup) comes to thermal equilibrium at 22?C.
What was the initial temperature of the shot?
The maximum transverse acceleration of a point at the middle of the segment is 8800 m/s^2 and the maximum transverse velocity is 3.50m/s.
A 2000 kg car traveling at a speed of 23m/s skids to the halt on wet concrete where = 0.60. How long are the skid marks.
Water at a pressure of 3.4 atm at street level flows into an office building at a speed of 0.5 m/s through a pipe 7.00cm in diameter. The pipes taper down to 2.6 cm in diameter by the top floor, 28m above.
A coin placed 29.0 cm from the center of a rotating, horizontal turntable slips when its speed is 50.2 cm/s, What is the coefficient of static friction between coin and turntable
If the magnitude of vector A is 10.0 m and that of vector B is 12.5 m, what is the range of values allowed for the magnitude of the sum of A and B?
A 230g baseball is pitched at 42m/s spinning at 40rad/s . You can treat the baseball as a uniform solid sphere of radius 4.0cm
How far from a point on the floor directly below the edge. Why is it a good idea to have your hand extended forward when you are getting ready to catch the fast moving baseball with your bare hand.
Classically, the electron cannot pass through the barrier because E
A car travelling 92 {rm km/h} is 150 {rm m} behind a truck travelling 80 {rm km/h}. How long will it take the car to catch the truck.
Illustrate what is the smallest angle of incidence with respect to the top mirror, such that the laser beam hits the mirrors in each way?
Two submarines are moving towards each other in a portion of the Atlantic Ocean where the water is calm. Sub A is moving at 14.0 m/s, What frequency does sub B detect
What horizontal force acts on the puck after the push
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