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A unknown mass of silver is pulled from a furnace, where the temperature was 900 degrees Celsius, and placed on a very large block of ice at 0.0 degrees Celsius, assuming that all the heat is given up by silver is utilized to melt 1.3kg ice and that not all the ice melts, what is the mass of the silver. (Specific heat capacity of silver is 230 J/(kg k))
The fan blades on a jet engine make one thousand revolutions in a time of 50.7 ms. What is the angular frequency of the blades
suppose a cube of aluminum which is 1.00 cm on a side accumulates a net charge of 2.70 pc.a what percentage of the
a laser positioned on a ship is used to communicate with a small two man research submarine resting on the bottom of a lake. How far is the submarine from the side of the ship
a 4.0-oc charge is situated at the origin of an xy-coordinate system. what is the potential difference between a point
Atoms are typically spaced about 0.2 nm apart. At that spacing, how many atoms would be found in a line 4.93 inches long?
a 30 kg child stands on the edge of a stationary merry-go-round of radius 2.0 m. What is the angular speed of the merry-go-round just after the ball is caught
calculate the ratio of the rates of stimulated emission to spontaneous emission for a hene laser operating at 632.8nm.
the components of an airplane's motion are described as: 193 m/s west and 151 m/s south. determine the speed of the airplane
In one day, a 85 kg mountain climber ascends from the 1440 m level on a vertical cliff to the top at 2360 m. The next day, she descends from the top to the base of the cliff, which is at an elevation of 1310 m.
Emilie wishes to fly to Phun City, a place where Physics Geeksrule the land, loacted 800 km [N] of her present postion. what will be her observed ground velocity
A heat pump uses an ideal Carnot cycle to heat a house. The outside air has a temperature of 292 K, What is the coefficient of performance of this heat pump
question11. directions of electric field are indicated on field lines. why dont you have a direction indicated on an
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