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A student holds a laser that emits light of wavelength 633nm. The beam passes through a pair of slits separated by 0.3mm, in a glass plate attached to the front of the laser. The beam then falls perpendicularly on a screen, creating an interference pattern on it. The student begins to walk directly toward the screen at 3.0m/s. The central maximum on the screen is stationary. Find the speed of the first-order maxima on the screen.
A diatomic gas does 320 J of work and also absorbs 600 cal of heat. What is the change in internal energy of the gas?
What are the direction and magnitude of the magnetic force the field exerts on the proton.
Light has a wavelength of 550 nm in a vacuum. It then enters a medium of index of refraction 1.70, What is the frequency of this light in the vacuum, What is its frequency in the medium
A ceiling fan with 82cm diameter blades is turning at 70rpm. Suppose the fan coasts to a stop 29s after being turned off. Illustrate what is the speed of the tip of a blade 10s after the fan is turned off?
Electrons in a television's CRT are accelerated from rest by an electric field through a potential difference of 2.9 kV, What is the speed of the electrons
What are the rocket's horizontal range, greatest height, and total time of flight. The magnitude of the torque of this force on the door with respect to the hinge is most nearly .
Two children tug on a toy of mass 2.0 kg. Costa pulls with a force of 10.0N [W 30degrees S]. The toy slides with an acceleration of 2.5 m/s^2 in the direction of the net force.
A capacitor consists of square conducting plates 28cm on a side and 5.5mm apart, carrying charges ± 1.8?C, Find the stored energy
A diverging lens has a focal length of 71.5 cm. A real object is placed 30.9 cm in front of the lens. How far is the image located from the lens
A parallel plate vacuum capacitor is connected to a battery and charged until the stored electric energy is u, Find u, the energy dissipated in the resistor
A permanent magnet is hung from a string ( balanced ) and pointed in an East - West orientation and released. Describe its motion
Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of 24.1 m/s to each pellet. Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the..
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