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A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. One is a 50 g piece of copper at 70°C. The other sample has a mass of 69 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20°C. Determine the specific heat of the unknown second sample.
If atmospheric pressure is 29.5 feet of water, what is the pressure in bars at the bottom of a 3 meter deep swimming pool
A hollow, thin-walled sphere of mass 13.0kg and diameter 45.0 cm is rotating about an axle through its center. At the time 4.00s, find the angular momentum of the sphere
A 2.31-kg bucket is attached to a disk-shaped pulley of radius 0.109 m and mass 0.801 kg. What is the angular acceleration of the pulley
An anchor, made of cast iron of bulk modulus 60.0 × 109 Pa and of volume 0.230 m3, Find the change in the volume of the anchor
A proton with v = 322 m/s is moving through a region in which the magnetic field is B = 2.2 T, what angle does the protons velocity make with B
A hollow cylinder (hoop) is rolling on a horizontal surface at speed v=3.0 m/s when it reaches a 15 degree incline. How far up the incline will it go
A 6.10 g lead bullet traveling at 310 m/s is stopped by a large tree. what is the increase in temperature of the bullet
Batman and Robin are attempting to escape that dastardly villain, the Joker, by hiding in a large pool of water (n=1.33). The Joker stands gloating at the edge of the pool.
"A plane, diving with constant speed at an angle of 54.0 degrees with the vertical, releases a projectile at an altitude of 770m. what is the speed of a aircraft
100.0 W tungsten filament bulb generates 95.0 W of heat, determine difference in temp. between inner and outer surface of glass
A total of 8.07·106 electrons are placed on an initially uncharged wire of length 3.77 m. What is the magnitude of the acceleration of a proton placed at that point in space
a ball is thrown upward from the roof of a building, passes the roof going down three seconds later, how fast did the ball strike the ground
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