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Problem: A railroad freight car of mass 4.62 x 104 kg collides with a stationary caboose car. They couple together, and 40.0% of the initial kinetic energy is transferred to thermal energy, sound, vibrations, and so on.
Question: Find the mass of the caboose.
If possible just a brief explanation how you got the answer?
A balloon having an initial temperature of 18.3°C is heated so that the volume doubles while the pressure is kept fixed. Determine the new value of the temperature
A projector lens having a focal length of 15 cm puts an image of a 35 mm slide on a screen 4 m away, How large is the image of the slide on the screen
In a certain region, the earth's magnetic field has a magnitude of 4.7 x 10-5 T and is directed north at an angle of 42° below the horizontal. Determine the bullet's electric charge
Assuming each quadrant of the pizza to be the same, find the center of mass of the uneaten pizza above the axis
A capacitor has parallel metal plates of dimensions 12 cm *24 cm seperated by an air gap of .750 mm. find how much energy is stored in the capacitor
a calculate the inductance of a solenoid containing 300 turns if the length of the solenoid is 25.0 cm and its cross
Calculate the limiting angle of resolution for the eye, assuming a pupil diameter of 1.80 mm, a wavelength of 530 nm in air, and an index of refraction for the eye of 1.33
If a copper wire has a resistance of 28.2 Ω at a temperature of 24.5oC, find what resistance does it have at 68.8oC
A test is fired stright up from rest with a net acceleration of20m/s2. after 4 seconds the motor turns off, but the rocket continues to coast upward. what maximum elevation does the rocketreach?
A piece of wood of density of mass 5kg is 400 x 500 x 300mm thick. When it is floating water, how much of this thickness h is submerged, What is the weight of this substance
Assume a volleyball player claims a hang time of 1.25 seconds. Then that player must be able to jump a vertical distance of what.
A 6.00 g bullet, traveling horizontally with a velocity of magnitude 450m/s, is fired into a wooden block with mass of 0.780kg, initially at rest on a level surface. What is the decrease in kinetic energy of the bullet
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