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A clay ball and a rubber ball have equal mass. A student releases each ball from rest at the same height. the clay ball sticks to the ground while the rubber ball bounces back up. The magnitude of the impalse delievered to the rubber ball by the floor is greater, less or equal to that delievered to the clay ball by the floor?
A laser beam of power 4.60 W and diameter 2.6 mm is directed upward on the circular face ( diameter of the face
James Bond is riding a bike at 15 m/s, chasing Car #1 moving in the same direction at 35 m/s. Behind James is another car, Car 2, What is the beat frequency he hears
A guitar string is supposed to vibrate at 247Hz, but is measured to actually vibrate at 255Hz. By what percentage should the tension in the string be changed to get the frequency to the correct value?
A curve of radius 50 m is banked for the design speed of 100 km/h. If the coefficient of static friction is 0.60 (wet pavement), at what range of speeds can a car safely create the curve.
A 2.2 m long uniform plank is supported by two bathroom scales, one at either end. Initially the scales each read 100.0 N. How far is his center of gravity from the soles of his feet
What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on projectile when it is going down as it did when it was going up.
Superheated water vapor initially at 15 bar and 440°C is cooled at constant pressure to a saturated vapor state and is then cooled at constant volume to a final temperature of 120°C, Determine the quality of the water at the final state
The mean distance between the Earth and the Sun is 1.50×1011 m. The average intensity of solar radiation incident on the upper atmosphere of the Earth is 1390 W/m2, determine the total power radiated by the Sun
An artificial satellite circling the Earth completes each orbit in 118 minutes. Find the altitude of the satellite
Tarzan, with a mass of 80.0 kg, wants to swing across a ravine on a vine, how much kinetic energy (at least) must he have when he jumps off the cliff where he starts
A 44.5 mA current is carried by a uniformly wound air-core solenoid with 435 turns, a 20.0 mm diameter, and 14.5 cm length. Compute the magnetic flux through each turn
It is desired to construct a solenoid that will have a resistance of 5.00 ohm (at 20°C) and produce a magnetic field of 4.00 x 10-2 T at its center when it carries a current of 3.60 Amp. Calculate the length the solenoid should have
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