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A) 50 g of ethyl alcohol is mixed with 50 g of H2O. What is the resulting density?
B) 50 cm^3 of ethyl alcohol is mixed with 50 cm^3 with H2O. What is the resulting density? Please show explanations/work.
The maximum angular magnification of a magnifying glass is 12.0 when a person uses it who has a near point that is 25.0 cm from his eyes. Obtain the focal length of the objective
After the interaction, the particles (which can't be distinguished) are observed moving at angles 55.3° and 34.7°, both angles being measured with respect to the original direction of motion. Illustrate what are the final speeds of the particles?..
An electric oscillator ismade with a 0.15 micro F capacitor and a 2.0 mH inductor. The capacitor is initially charged up with a 6.0 V battery. What is the frequencyat which it oscillates?
A disc has a radius of 2.20 cm and a mass of 27.0 grams and is initially at rest. Starting at time t=0, two forces are applied tangentially to the rim as indicated, calc the moment of inertia of the uniform disc
A heat engine operates between a high-temperature reservoir at670K and a low-temperature reservoir at 320 K. What is the magnitude of the net change in entropy as a result of this cycle
a sample of an unknown material appears to weigh 280 n in air and 175 n when immersed in alcohol of specific gravity
A flight attendant pulls hero 70 N flight bag a distance of 253 m along a level airport floor at a constant velocity. The force she exerts is 40N at an angle of 52.0 degrees above the horizontal.
A 0.20-kg baseball is dropped and reaches a speed of 1.0 m/s just before it hits the ground. What is the change in the ball's momentum
A crate with a mass of 171.5 kg is suspended from the end of a uniform boom with a mass of 80.3 kg. The upper end of the boom is supported by a cable attached to the wall and the lower end by a pivot (marked X) on the same wall. compute the tensio..
Since 1983, the U.S. Mint has coined pennies that are made out ofzinc with a copper cladding. The mass of this type of penny is 2.50g. what is the thickness of the copper cladding
A research submarine has a 20.0cm -diameter window 9.00cm thick. What is the submarine's maximum safe depth
A light ray is incident from air onto the surface of a very quiet lake. what is the index of refraction of the water
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