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A thin homogeneous square of mass m and side a is welded to a vertical shaft AB with which it forms an angle of 45°. Knowing that the shaft rotates with an angular velocity ω, determine the angular momentum of the plate about A
A dog with a mass of 5kg is standing on a float boat so that he is 20 meters from the shore on a calm lake. How far does the boat move away from the shore after the dog stops walking
a transformer has N^1 =350 turns and N^2 =2000 turns. what voltage is developed across the secondary coil?
A 80 kg block is pulled at a constant speed of 8.3 m/s across a horizontal floor by an applied force of 120 N directed 37° above the horizontal. What is the rate at which the force does work on the block
A crate of mass 2000 kg is hanging from a crane at the end of a cable 12 m long. If we attach a horizontal rope to this crate and slowly apply a pull of 1800 N, what angle will the cable finally create with the vertical?
1. For the following questions consider a water molecule, H2O. a. What type of bond is formed between the oxygen and the hydrogen atoms?
find the speed and direction of a proton passing through the origin and where the magnetic fields are: B1=1.0x10^-13 (j hat) T at (x,y,z)= (1,0,0) in mm, B2= -1x10^-13 (i hat) at (0,1,0) in mm
A charge of -4 x 106 coil is moving at 800 m/s along a path parallel to a horizontal straight wire and is 20 cm above it. find magnitude and direction of the force on the charge
You’re out at the park with some friends where there is an open-air concert. Standing 20. meters from the stage, the music is a agreeably loud 90. dB. After a while you all decide to move somewhere quieter where you can hear each other talk.
Consider 1cm³ of liquid nitrogen contained within a 5cm³ sealed container. If the temperature of the container is raised to 293 K and all of the liquid nitrogen were to subsequently evaporate, what would the pressure be within the container?
Consider again the long wire near a small wire rectangle. The long wire is part of a circuit. The circuit is small enough that all the approximations we've used in class are good, but the wire near the rectangle is much longer than the rectangle. ..
A small 'bug' is located exactly at the center of a transparent glass sphere of radius 2.00cm. If the index of refraction of the glass is 1.52, How far from the surface does the bug appear to be
A wire has a diameter of 1.35 mm and a length of 35.6 m, and is found to have a resistance of 1.3 capital omega. What is the resistivity of the wire
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