What is the maximum rise in temperature of the water
From a height of 35.0 m, a 1.25 kg bird dives (from rest) into a small fish tank containing 50.0 kg of water. What is the maximum rise in temperature of the water if the bird gives it all of its mechanical energy? (delta)T= ?? degrees C.
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An Electron gun emits a beam of 12.0 kev electrons toward the screen. How far horizontally is the deflected by the Earth's magnetic field if the electron gun is 20cm from the screen.
A spring is hung from the ceiling. A 0.550 kg block is then attached to the free end of the spring. When released from rest, the block drops 0.130 m before momentarily coming to rest.
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From a height of 35.0 m, a 1.25 kg bird dives (from rest) into a small fish tank containing 50.0 kg of water. What is the maximum rise in temperature of the water.
A 340 piano slides 3.8 down a 32 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure ). The effective coefficient of kinetic friction is 0.40.
A bat flies toward a wall, emitting a steady sound of frequency 2.00kHz . This bat hears its own sound plus the sound reflected by the wall. How fast should the bat fly in order to hear a beat frequency of 10.0Hz ?
Do you think that communication is more important to leaders now than it was in Hitler's and FDR's time? Explain why you think so or why you disagree.
For what values x will the sound this person hears be (a) Maximally reinforced, (b) cancelled? Limit your solution to the cases where x is less then or equal to 1.5 m.
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