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A 57 gram silver bullet traveling at 1089 mph strikes an armor plate and comes to a stop. If all its energy is converted to heat that is absorbed by the bullet, what is the bullet's temperature change in degrees Celsius?
If you are watching a football game from the end of a large stadium, what size will be the image of the football (L=0.3m) on your retina when the football is at the end of the field, 150m away from your seat? (CSG)
Find the maximum equivalent capacitance that can be obtained by combination of three capacitors of 1.1 μF, 1.3 μF, and 1.7 μF
A man weighing 720 N lies on a bed of nails. Find the average pressure exerted by a nail on his skin if there are 1210 nails and the flattened point on each nail has a radius of 0.500 mm
The Earth is about to be swallowed by a black hole with the mass equal to ten Solar masses. At what distance from the black hole will the Earth be pulled apart by tidal forces - i.e. find the Roche limit for this system.
A motor is designed to operate on 117 V and draws a current of 13.3 A when it first starts up. Obtain the back emf developed at normal speed
How many experimental runs are there that involve use of the lowest temperature and two lowest pressures
1. Describe the forms of porosity that exist in "killed steel" and "semi-killed steel". 2. Why does preheating and postheating reduce the amount of hydrogen left in a weld?
Two resistors are connected in series to a battery with an emf of 12 V. The voltage across the first resistor is 2.9V and the current through the second resistor is 0.13A. Find the resistance of the second resistor
A point charge +2.40 is held stationary at the origin. A second point charge -4.30 moves from the point = 0.125 , = 0 , to the point = 0.240 , = 0.240.
Thunder is heard 4.0 sec after the flash of lightning is observed. If the outside temperature is 15 degrees celsius, how far away was the lightning bolt
Gliders with masses 0.150kg and 0.220kg are at rest on an air track with a spring between them. Find the speed of the heavier glider
A uniform disk of mass 10 kg and radius 3.0 m can rotate without friction about its fixed center like a merry-go-round. What is the angular velocity of the two disks together about the center of the large disk after the small disk have moved
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