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Suppose that the amount of heat removed when 1.6 kg of water freezes at 0.0 oC were removed from ethyl alcohol at its freezing/melting point of -114.4 oC. How many kilograms of ethyl alcohol would freeze?
Explain the characteristics of supersonic motion and the formation of shock waves. Explain the formation of beats by the superposition of sounds of two closely spaced frequencies
The charge on the opposite side to the point is -4 nC and the charges on the adjacent sides of the square are +4 nC. Find the potential at the uncharged corner
An ideal gas consists of n moles of diatomic molecules that rotate but do not oscillate. What is the change in the mean free path of the molecules
A thermos contains 170 cm3 of coffee at 85° C. To cool the coffee, you drop two 14-g ice cubes into the thermos. What is the final temperature of the coffee
a hydrogen atom is at rest in the n3 state and absorbs a photon of wavelength 500 nm ionizing the atom. assume all the
q1. a spring with spring constant 12.5 hangs from the ceiling. a 400 ball is attached to spring and allowed to come to
A certain nuclear power plant has an electrical power output of 430 MW. The rate at which energy must be supplied to the plant is 1,510 MW. What is the thermal efficiency of the power plant
A garden hose of inner radius 1.1 cm carries water at 1.8 m/s. The nozzle at the end has radius 0.25 cm. How fast does the water move through the nozzle
The average intensity of sunlight at the top of the earth's atmosphere is 1390 W/m2. What is the most energy that a 30 m multiplied by 55 m solar panel might collect in one hour in this sunlight.
The potential difference between the ends of a resistor is 9 V and the rate of energy dissipation in it is 18 W. What is the value of that resistor
Two long straight parallel wires are fixed . Point p is in between the wires. Point p is 0.5 maway from the wire with 1A and 1m away from the wire with 3A . The currents go in the same direction.
The skis have a thrust of 200. Sam's speed at the bottom is 43.0. Illustrate what is the coefficient of kinetic friction of his skis on snow?
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