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A 0.04-m3 tank initially contains air at ambient conditions of 100 kPa and 22°C. Now, a 15-liter tank containing liquid water at 85°C is placed into the tank without causing any air to escape. After some heat transfer from the water to the air and the surroundings, both the air and water are measured to be at 44°C. Determine
(a) The amount of heat lost to the surroundings and
(b) The energy destruction during this process.
An eagle is flying horizontally at 6.7 m/s with a fish in its claws. It accidentally drops the fish. How much time passes before the fish's speed doubles
The length of a simple pendulum is 0.86 m and the mass of the particle (the "bob") at the end of the cable is 0.33 kg. The pendulum is pulled away from its equilibrium position by an angle of 9.0 ° and released from rest.
a 20-ft long non-uniform rod rest with its two ends on scales. when a 120-lb person stands at the geometric center of
A 1.1 kg birdfeeder hangs from a horizontal tree branch. The birdfeeder is attached to the branch at a point that is 1.0 m from the trunk. where the branch attaches to the trunk
A flask with a volume of 1.50L, provided with a stopcock, contains ethane gas (C2H6) at a temperature of 310K and atmospheric pressure 1.013 × 105 Pa. What is the final pressure of the ethane in the flask
a horizontal conductor that is part of a power line carries a current of 6600 a from south to north. earths magnetic
suppose a 29.9-kg child sits 1.27 m to the left of center on the same seesaw as the problem you just solved in the
A person pulls a toboggan for a distance of 40m along the snow with a rope directed 25 degrees above the snow. The tension in the rope is 83N.
Neglecting air resistance, if you throw a ball straight upwith a speed of 20 m/s, how fast will it be moving when you catch it
A wrecking ball is hanging at rest from a crane when suddenly the cable breaks, Find the time it takes for the ball to fall from rest all the way to the ground
An object with a height of 47 centimeter is placed 2.4 meter in front of a convex mirror with a focal length of -0.40 meter. Compute is the image upright or inverted
A cylindrical capacitor consists of a long wire of radius R1 and length L with a charge +Q and a concentric outer cylindrical shell of radius R2, length L and charge -Q. Find the electric field magnitude and energy density everywhere
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