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Suppose 2.5 kg of 32 deg C water is mixed with 9.3 kg of 65 deg C water. if no heat is lost in this system, then what is the final temperature of the water.
A 4.0-mF capacitor initially charged to 50 V and a 6.0-mF capacitor charged to 30 V are connected to each other with the positive plate of each connected to the negative plate of the other
An apple is dropped from a 25m cliff. At the similar time, a person at the bottom of the cliff fries an arrow up towards the apple. The arrow sticks the apple 0.450 seconds later.
A girl of mass 50.0 kg jumps off the bow of a 84.0-kg canoe that is initially at rest. If her velocity is 2.90 m/s to the right, what is the speed of the canoe after she jumps
Two identical, small insulating balls are suspended by separate 0.31-m threads that are attached to a common point on the ceiling. determine the tension in the threads
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 14.0 m/s at an angle 61.0 degrees; What is the distance between the two girls
in a potentiometer arrangement a cell of emf 1.25 v gives a balance point at 35.0 cm length of the wire. if the cell is
A pair of closely spaced square conducting plates measure 8.0cm on a side. What is the charge on the plates
A 24-kg boy stands 1 m from the center of a frictionless playground merry-go-round, which has a moment of inertia of 218 kg m2. Calculate the speed of the boy relative to the surface of the merry-go-round
Two flat 4.0 cm × 4.0 cm electrodes carrying equal but opposite charges are spaced 2.0 mm apart with their midpoints opposite each other. What is the magnitude of the charge on each electrode
A cowboy at a dude ranch fills a horse trough that is 1.6 m long, 74 cm wide, and 42 cm deep. He uses a 2.2 cm diameter hose from which water emerges at 1.1 m/s . How long does it take him to fill the trough?
A step-down transformer produced a voltage of 9.0 V across the secondary coil when the voltage on the primary coil is 120 V. Whatvoltage would appear across the primary coil of this transformer if120 V was applied to the secondary coil?
Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.23 x 10^-3 g. Find the temperature inside the box
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