Speed of light in a vacuum
Light has a wavelength of 228.2 nm and a frequency of 7.575 x 1014 Hz when traveling through a certain substance. What is the refraction index of this medium? Use 2.998 x 108 m/s for the speed of light in a vacuum.
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Determine the total rate of coal consumption (kg/s) Qin = mfuel * heating value of fuel, the fraction of the total coal mass used to operate the super-heater (%).
Calculate the mole fraction of Kr and its concentration in partsper million by volume.( Kr composition % by volume is 0.00014)
A 1.5kg rock is released from rest at the surface of a calm lake. If the resistance offereed by the water as ther rock falls is directly porportional to the rock's velocity, the rocks acceleration is a=g-C(d) v/m, where g is the acceleration fo gr
Determine, a) the minimum mass flow rate of water that must be diverted from the river and through the condenser (kg/s), b) the temperature of the river downstream (Tdown) of the power plant.
A bullet is fired vertically upward and reaches a height of 2150m. What is it's initial velocity and how long does it take to reach it's maximum height?
A 15m x 15m x 3.0m basement had a high radon content. On the day the basement was sealed off from its surroundings so that no exchange of air could take place, the partial pressure of222Rn was 1.2*10-6 mmHg.
For the water, determine (a) the quality at the initial state, (b) the temperature at the final state, in degrees F, and (c) the heat transfer, in Btu, Kinetic and potential energy effects can be ignored.
59.0 mL of an unknown molarity of sodium hydroxide is combined with45.0 mL of 1.40 M magnesium chloride. What is the molarity of sodium hydroxide?
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