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On a roller coaster ride the total mass of the cart - with passengers included - is 290 kg. PeakK is at 44.5 m above the ground, peakL is at 28.0 m. The speed of the cart atK is 19.0 m/s, at L it is 12.6m/s. (The wheel mechanism on roller coaster carts always keeps thecarts safely on the rail.)A.) How much energy is lost due to friction between the two peaks?B.) The radius of curvature of the rail at peak L is 10.2 m. What isthe magnitude of the net force on a 73.8 kg passenger at this point?
The work needed to remove an electron from the surface of sodium is 2.3eV. Find the maximum wavelength of light
a pump is required to lift a mass of 820kg of water per minute from a well of depth 14.7 m and eject it with a speed of
A wire has strength 6700N and is tied to two posts in the ground 70m apart. If the wire is broke at the exact center by a force and the center was displaced by 5m what was the transverse force?
A student standing on a stationary skateboard tosses a textbook with a mass of mb = 2 kg to a friend standing in front of him. What is the magnitude of the velocity of the book
A 0.7 kg block of ice is sliding by you on a very slippery floor at 3.5m/s. As it goes by, you give it a kick perpendicular to its path. Your foot is in contact with ice block for 0.003 seconds.
Capacitors are used in many applications where one needs to supply a short burst of relatively large current. Approximately what is the resistance of the lamp if the current reaches 5.0% of its original value in 1.1 ms
a golf ball rolls off a horizontal cliff with an initial speed of 13.6 ms. the ball falls a vertical distance of 12.0 m
On planet Zog, Mr. Spock measures that it takes 1.47 s for a mass of 0.50 kg to hit the ground when released from rest from a height of 2.85 m. Calculate the size of the acceleration of gravity on that planet
A horizontal wire of length 0.58 m, carrying a current of 7.2 A, is placed in a uniform external magnetic field, Determine the magnitude of the external magnetic field
question1in the relativistic heavy ion collider in brookhaven ny physicists are attempt to rebuild the conditions of
Two wires, each 2.4 m long, are taped together to form atwo-wire unit that is 2.4 m long. What is the current in the other wire
When a diver jumps off a diving board into a pool, while in the air, it is easier to somersault while their body is tucked into a ball-like shape and harder while their body is extended?
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