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A laser beam, with a wavelength of 532 , is directed exactly perpendicular to a screen having two narrow slits spaced 0.15 apart. Interference fringes, including a central maximum, are observed on a screen 1.5 away. The direction of the beam is then slowly rotated around an axis parallel to the slits to an angle of 1.0. By what distance does the central maximum on the screen move?
A free electron and a free proton are placed in an identical electric field. which of the following statement are true?
A pot containing 1.07 liter of water, initially at 23°C, is placed on a 1071 W electric heating element. How much heat is necessary to boil all the water away
The outside mirror on the passenger side of a car is convex and has a focal length of -7.7 m. Find the image distance of the truck
A copper wire has a resistance of 0.500 ? at 20.0ºC , and an iron wire has a resistance of 0.525 ? at the same temperature
A uniform chain of total mass m is laid out straight on a frictionless table and held stationary so that one-quarter of its length, L = 2.85 m, Determine the speed of the chain
A dynamite blast at a quarry launches a rock straight upward, and 2.1s later it is rising at a rate of 14m/s. assuming air resistance has no effect on the rock, compute its speed.
A student (m=63 kg) falls freely from restand strikes the ground. During the collision with the ground, hecomes to rest in a time of 0.010 s. From what height did the student fall
Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB (relative to the threshold of human hearing) for a period of 9.00 hours
Student lifted a 3.00 kg stone from point .0500m above the floor toa point 1.75 above the floor and dropped it. Calculate the stones's gravitational potential energy (withrespect to the floor) when it was .500 m above the floor.
You connect five identical resistors in series to a battery whose EMF is 12.0 V and whose internal resistance is negligible. What are the resistance of each resistor and the potential difference across each resistor
A 1200-kg cannon shoots a 28-kg shell at an angle of 25° above the horizontal and a speed of 470 m/s. What is the recoil velocity of the cannon
How long will it take until the sun has used up all the hydrogen atoms in the core (the central 10%)? That is, what is the main-sequence lifetime of the sun and compare the lifetime of the sun to the current age.
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