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The figure shows a rigid structure consisting of a circular hoop of radius R and mass m, and a square made of four thin bars, each of length R and mass m. The rigid structure rotates at a constant speed about a vertical axis, with a period of rotation of 3.7 s. If R = 0.4 m and m = 4.1 kg, calculate the angular momentum about that axis.
a car accelerates along a straight road from rest to 90km/h in 5 seconds, what is the magnitude of its average acceleration
Consider a Young's two-slit experiment in which the wavelength of light is 45% smaller than the distance between the slits. How many complete dark fringes would be seen on a distant screen
Starting from rest, a 2.3x10-4 kg flea springs straight upward. While the flea is pushing off from the ground, What is the flea's speed when it leaves the ground
question1a. write three methods of increasing the volume of a balloon without adding more molecules to it.describe
A regional airline flight consists of two legs with an intermediate stop. The airplane flies 410 due north from airport A to airport B. What is the direction of the average velocity for the trip
Water flowing through a 2.00cm diameter pipe can fill a 280 L bathtub in 5.0 minutes. What is the speed of the water in pipe.
A suitcase is pulled by a tether that makes a 60 degree angle with the horizontal. what is the magnitude of the pull
At a playground you let your kid sister (30 kg) kneel on the surface (near the edge) of a 2.5 meter diameter merry-go-round. What is the constant angular acceleration
A magnetic field is applied perpendicular to the plane of the disk. Assume that the field is 0.900 T, Find the emf generated between the brushes
50 g of gasoline are mixed with 38 g of water. What is the average density of the mixture
If one shines a laser with wavelength ? = 650 nm through a single slit of width a = 0.04 mm, How far apart are the minima
In a double-slit experiment, the slit spacing is 0.22m, the distance to the screen is 3.30m, and light of wavelength 662nm is used. What is the thickness of the polystyrene sheet
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