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A brick is initially 7.72 cm high and an aluminum can is initially 7.73 cm high. By how much should their temperatures be raised in order for the brick and the can to have precisely the similar height?
A 50.0 g copper calorimeter contains 260 g of water at 22.0°C. How much steam ought to be condensed into the water if the final temperature of system is to reach 42.0°C.
In the Bohr model, as it is known today, the electron is imagined to move in a circular orbit about a stationary proton. what would be the corresponding orbital radius
A ball is thrown straight up from the edge of the roof of the building. A second ball is dropped from the roof a time of 1.01 s later. You may ignore air resistance.
q1. a 62.6-kg chandelier is suspended 1.5 m below a ceiling by three wires each of which has the same tension and the
A uniform cylindrical can rolls up a slope at an initial linearvelocity of 1.5m/s. Assuming μk = 0.106 and θ=11.0o, how high up the slope will the can roll
you slide a crate up a ramp at an angel of 30 degress by exerting a 225 n force parallel to the ramp. the crate moves
A spacecraft is in orbit around a planet. The radius of the orbit is 3.2 times the radius of the planet (which is R = 71466 km). What is the period of the spacecraft's orbit
A 0.160-kg baseball is pitched with a speed of 34.5 m/s (77.2 mph). When the ball hits the catcher's glove, the glove moves back by 5.03 cm (1.98 in.) as it stops the ball. What impulse was applied to the baseball
The coefficient of static friction between the wall and the rod is μs = 0.575. Determine the minimum distance x from point A at which an additional weight w (the same as the weight of the rod) can be hung without causing the rod to slip at point A.
a solid lead cylinder and a solid platinum cylinder have the same mass. what is the ratio of the length of the platinum
A 2000kg vehicle is travelling down the road at 20m/s (45 mph) when it reaches an intersection. Between rubber and dry asphalt, the coefficient of friction is 0.80. What is the minimum distance necessary for the car to stop.
A 13.0 kg bucket of water of is suspendedby a rope wrapped around a pulley, which is just a solid cylinder0.300 m in diameter with mass 17.0 kg. With what speed does the bucket strike the water
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