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A solid wood door 1.00 meter wide and 2.00 meter high is hinged along one side and has a total mass 53.0 kilogram. Initially open and at rest, the door is struck at its center by a handful of sticky mud with mass 0.500 kilogram, traveling perpendicular to the door at 13.0 m/s just before impact. Evaluate the final angular speed of the door. rad/s.
A silver wire of diameter 1.0 mm carries a current of 140 mA. How long (on average) does it take for a conduction electron to move 1.0 cm along the wire
a student is standing at the edge of a rotating circular platform of mass 200kg and radius 1.1 m. the student of mass
A reflecting telescope has a main mirror with fM = 620 mm. If an eyepiece with a magnification of 15 is used, what is the total magnification of the telescope
Compare the motion of two objects before a collision with their motion after the collision. You should be able to find a quantity, which will remain unchanged in a collision. Be sure to justify your reasoning.
Two frictionless carts are pulled (horizontally to the left) by a force of F1=24N. m1=2.0kg and m2=4.0kg, find the tension in the connecting cord
A solid cube of iron (density = 7.87 g/cm3) has a mass of 88.0 g. What is the resistance between opposite faces of the cube
Water (viscosity = 1centipoise) flows through a cylindrical plug in a laboratory experiment. what is the permeability of the sample in cm^(2)
The RMS speed of oxygen molecules (O2) in this room is 535 m/s. What is the temperature of the air at this location
A 130kg astronaut (including space suit) acquires a speed of 2.55m/s by pushing off with his legs from a 2000kg space capsule. What is the change in speed of the space capsule
A conductor bar ab of length 0.6 m is moving on two conductingrails with a speed v = 3.6 m/s perpendicular to a uniform magneticfield of B=0.35 T.
A rectangular sample of a metal is 3.8 cm wide and 600 µm thick. When it carries a 30 Acurrent and is placed in a 0.8 T magnetic field it produces a 6.5µV Hall emf. Detrmine the drift speed of the conduction electrons.
A capacitor is connected across the terminals of an ac generator that has a frenquency of 460 Hz and supplies a voltage of 24 V. When a second capacitor is connected in parallel with the first one, the current from the generator increases by 0.18 A. ..
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