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A 155 g copper bowl contains205 g of water, both at 20.0°C. Avery hot 300 g copper cylinder is dropped into the water, causingthe water to boil, with 5.40 g beingconverted to steam. The final temperature of the system is100°C. Neglect energy transfers with the environment.
a) How much energy (in calories) is transferred to the water as heat?b) How much energy (in calories) is transferred to the bowl?c) What is the original temperature of the cylinder?
two identical metal spheres a and b are connected by a plastic rod. both are initially neutral. 4.0times1012 electrons
unpolarized light goes through six polaroid sheets. each polaroid sheet is at an angle of 30deg from the one before it.
Particles called ?-mesons are created by accelerator beams. If these particles travel at 2.80 ? 108 m/s and live 2.60 ? 10-8 s, how long do they live as viewed in the laboratory
A 6.50 g lead bullet traveling at 560 m/s is stopped by a large tree. what is the increase in temperature of the bullet
The number density in a container of neon gas is 4.70×1025m?3. The atoms are moving with an rms speed of 640m/s. What is the pressure inside the container
The TGV, France's high-speed train, pulls out of the Lyons station and is accelerating uniformly to its cruising speed. find the acceleration of the train and the tension in the strap
The record distance in the sport of throwing cowpats is 81.1 m. This record toss was set by Steve Urner of the United States in 1981. Assume the initial launch angle was 45° and neglect air resistance. (a) Determine the initial speed of the projec..
A 50 kg child jumps into a small pool of water through a distance of 3 m and aquires 1000 J of kinetic energy. Assuming all of this energy goes into heating 10 kg of water in the pool, what is the change in temp of the water?
While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 64 kg person develops a power of 65W throughout a race, how fast is the person running? Assume that a running step is 1.5 m long.
A capacitor is fully charged by a 3V battery and has 0.02 J of energy stored in it. What is the charge on its side of the capacitor
one can not align the apparatus to eliminate entirely the effects of the earths magnetic field. consider the case where
A student sits on a rotating stool holding two 3.2-kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus s..
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