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(A) A laser beam with wavelength ? = 6328 Å is incident normal to the plane of a diffraction grating. The grating has 550 lines per mm. If the diffraction pattern is viewed on a screen 10 cm from the grating, find the distance between the two first- order maxima in the pattern.
(B) A laser beam with wavelength ? = 6328 Å is incident normal to a single slit of unknown width. The diffraction pattern as shown in the figure is formed on a screen 80 cm from the slit. Find the width of the slit.
What is the gauge pressure (in kPa) of the air in the tires when its temperature rises to 26.5°C and its volume increases to 1.70 x 10-2 m3? Assume atmospheric pressure is 1.01 x 105 Pa.
Ann is driving down a street at 53km/h. suddenly a child runs into the street. If it takes Ann 0.709s to react and apply the brakes, how far will she have moved before she begins to slow down? Answer in units of m.
A skier starts from rest at the top of a hill that is inclined at 10.5? with the horizontal. The hillside is 191 m long, and the coefficient of friction between snow and skis is 0.0677. At the bottom of the hill, the snow is level and the coef..
An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 7.28 m/s2. Determine the orbital period of the satellite
A bullet with mass m = 5.21 g is moving horizontally with a speed v = 373 m/s when it strikes a block of hardened steel with mass M = 14.8 kg, What was the change in kinetic energy (J) of the bullet
What is the average speed in m/s of nitrous oxide molecule when the temp is 300K? The molar mass of oxygen is 0.032 kg/mol
A 3.2 µF capacitor and a 6.8 µF capacitor are discharged and then connected in series, What is the equivalent capacitance of this combination
A gamma ray photon produces an electron-positron pair each with a kinetic energy of 210 KeV. What was the energy and wavelength of the photon
Assume that you have two objects, one with a mass of 5 kg and the other with a mass of 17 kg, each with a charge of ?0.011 C and separated by a distance of 8 m. What is the electric force that these objects exert on one another? Answer in units of..
A magnifier has a magnification of 8 times. How far from the lens should an object be placed so that its (virtual) image is at the near-point distance of 25 {rm cm}.
One radiator has a volume of 0.09mt³. It contains saturated vapor at a temperature of 100°C. find The total mass of vapor in the radiator
An inductor used in a dc power supply has an inductance of 12.0H and a resistance of 170 OMEGA . It carries a current of 0.300 A. What is the energy stored in the magnetic field
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