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A laser shines on a pair of vertical slits. Given the measurements shown in the figure, calculate the wavelength of the light. (The illustration is not to scale. Note that the ruler measures in centimeters.)
Two litres of mixture in which there is 2/5 of water and the rest spirit is mixed with five litres of mixture in which there is 1/3 of water and the rest spirit. What is the ratio of water and spirit in the new mixture?
The solar panels on the roof of a house measure 4.0 meter by 6.7 meter. Find what average power do the panels supply when the incident intensity is 0.80 kW/m2 and the light is incident at an angle of 56 degree from the normal
An ideal gas at 11.7 °C and a pressure of 2.42 x 105 Pa occupies a volume of 3.84 m3. How many moles of gas are present
A string is fixed at both ends and is vibrating at 124 Hz, which is its third harmonic frequency. Determine the length of the string
A flywheel comprises a uniform circular disk with a mass of 101.0 kg and a radius of 1.1 m. It rotates with an angular velocity of 1183 rev/min. ow many revolutions does the flywheel make while it is stopping in time 117.0 s
A negatively charged particle (mass=M, charge=-Q) moves in a region of space where the magnetic field has a constant magnitude of B and a vertically downward direction (into the page). What is the magnitude and direction of the magnetic force
Two and one-half kg of ice at temperature T' = 0ºC is melted into water at the same temperature by placing it in contact with a reservoir at temperature TR = 20.0ºC. What is the change in the entropy of the universe
How fast is an ion of deuterium moving, assuming rms speed, if it is in a plasma with a temperature of 100 x 106 K? (kB = 1.38 x 10-23 J/K and mD = 2 x 1.66 x 10-27 kg)
Determine what is the lowest resonant frequency of an 85 centimeter tube if it is closed at one end? Determine what is the frequency of the first overtone
The work function of sodium is 3.12 *10-19J. A sodium lamp emits yellow light with a wavelength of 590nm. Calculate the stopping potential of the electrons emitted from a sodium plate illuminated by a sodium lamp.
one mole of a dilute gas initially has a pressure equal to 1.00 atm and a volume equal to 27.0 l. as the gas is slowly
An abstract sculpture is constructed by suspending a sphere of polished rock along the vertical with four cables connected to a square wooden frame 1.1 m on a side. If the stone has mass m = 7.5 kg, and the bottom two cables are under a tension of..
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