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A 15 g lead bullet traveling at 240m/s passes through a thin wall and emerges at a speed of 160m/s . If the bullet absorbs 54% of the heat generated, what will be the temp. rise of the bullet?
A mass M of a liquid at a temperature T1 is mixed with an equal mass of the same liquid at a temperature of T2. The system is thermally insulated. If C is themperature-independent specific heat of that liquid
Problem on elevator
An empty parallel plate capacitor is charged with the charge Q= 5uC (One plate of the capacitor carries the carge +Q and the other carries the -Q). Find the capacitance of the capacitor
What is the instantaneous power, at a time of 0.00700 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V highest potential difference operating at 5000 rad/s .
A 5.20 g pop up toy is compressed 1.50 cm and pops up to the height of 50 cm the spring constant is 270 Nm. What is the loss of energy.
A 75.0 kg stunt man jumps from a balcony and falls 26.5 m before colliding with a pile of mattresses. what is the average force exerted by the mattresses on the stuntman
A car travels up a hill at a constant speed of 31 km/h and returns down the hill at a constant speed of 47 km/h. Calculate the average speed for the round trip
A bolt comes loose from the bottom of an elevator thatis moving upward at a speed of 5.42 m/s. The boltreaches the bottom of the elevator shaft in 2.90 s. Howhigh up (in m) was the elevator when the bolt came loose?
A temperature controller designed to work in an atmosphere containing steam a bimetallic strip of brass and steel built connected at their ends by rivets. Each metal has 2.0 mm thick. At 20 ° C, the strip is 10.0 cm long and is straight.
An unstable particle is at rest and suddenly breaks up into two fragments. No external forces act on the particle or its fragments. What is the velocity of the more massive fragment
A parallel-plate capacitor has plates of dimension 1.5cm x 3.0cm separated by a 1.5mm thickness of paper, what is the capacitance of this device
A golf ball strikes a hard, smooth floor at an angle of 32.5 ° and rebounds at the same angle, What is the magnitude of the impulse applied to the golf ball by the floor
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