What is the energy of one mole of photons of radiation
A cook uses a microwave to heat a meal. The frequency of radiation is 2.45 x 10^9 s^-1. What is the energy of one mole of photons of this microwave radiation?
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The reflected wave, when combined with the outgoing wave, produces beats at a rate of 1432 s-1. How fast is the speeder going?
For the element at point A, draw a cub that shows the states of stress and use Mohr's circle to compute the principal normal stresses for this location.
When 42.0 mL of HCl of unknown concentration react to completely dissolve a sample of magnesium metal according to the reaction below, 0.193 L of hydrogen gas were collected at 20.5 °C and apressure of 761 torr of pressure.
Determine: (a) the thermal efficiency of this power plant (b) the thermal efficiency of stem is superheated at 600°C instead of 350°C.
How long would it take an identical panel that is also oriented perpendicular to the incoming radiation to absorb the same amount of energy, if it were on an interplanetary exploration vehicle 1.75 AU from the Sun?
The distance between two telephone poles is d = 53.5 m. When a 0.550-kg bird lands on the telephone wire midway between the poles, the wire sags h = 0.195 m. (a) How much tension does the bird produce in the wire? Ignore the weight of the wire.
During the first putt, the ball rolls 5.8 m due east. For the second putt, the ball travels 1.7 m at an angle 20° north of east. The third putt is 0.50 m due north. What displacement (magnitude and direction relative to due east) would have be
A 1400 kg car, initially at rest, is raised on a hydraulic lift that accelerates upward at 0.9 m/s2. What work does the lift perform on the car after it has been raised 1.8 m?
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