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Question: Two people stand 5.2m apart and 3.1m away from a large plane mirror in a dark room.
Part I: At what angle of incidence should one of them shine a flashlight on the mirror so that the reflected beam directly strikes the other person?
Please show how you got the answer.
A 3.40 kg block starts from rest andslides down a frictionless incline, dropping a vertical distance of3.30 m, before compressing a spring of force constant 2.54 104 N/m. Find the maximum compression of the spring.
question1a plane leaves the airport in galisteo and flies 170 km at 68deg east of north and after that changes
A doubly charged ion (charge 2e) with velocity 6.9 × 106 m/s moves in a circular path of diameter 60.0 cm in a magnetic field of 0.80 T in a mass spectrometer
A second baseman tosses the ball to first baseman, which catches it at the same level from which it was thrown. The throw is made with an initial speed of 15 m/s at an angle of 38.0^circ above the horizontal. What is the horizontal component of ba..
A ball (thin spherical shell)of mass m and radius Rand a very small lead marble (much smaller radius thanthe ball, so it can be treated as a point particle) of massM rolls moothly down an incline. The angle of the incline is µ.
a 30.0 w lightbulb is 19.0 percent efficient. this means that 19.0 percent of the electric energy is converted to light
A small sphere of mass m and radius r slides down a smooth stationary large sphere of radius R under the action of gravity from a position of rest at the top. Find the value of theta at which the particle falls off
A 1.0-kg block of ice at -5ºC is dropped into a 55-gallon barrel of water at 80ºF. What is the final state of the mixture
In a microscope the length of a tube is 20cm. The focal length of the objective is 1.00cm and the focal length of the eye piece is 3.00cm. Find the magnification of the microscope
A 4.00kg block is suspended from a spring withk=560N/m. A50.0g bullet is fired straight up into the block from directly below with a speed of168m/s, Find the amplitude of the resulting simple harmonic motion
A small block with mass m1 rest on a frictionless horizontal tabletop a distance r1 from a hole in the center of the table. A light, stretchless string tied to the small block passes down through the hole, and a larger block with mass m2 is suspen..
Two converging lenses, each of focal length 15.1 cm, are placed 40.4 cm apart, and an object is placed 30.0 cm in front of the first lens. What is the magnification of the system
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