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A weather vane initially at rest has a moment of inertia of 0.125 kg · m2 about its axis of rotation. A 63.5 g piece of clay is thrown at the vane and sticks to it at a point 15.5 cm from the axis. The initial velocity of the clay is 10.5 m/s, directed perpendicular to the vane. Find the angular velocity of the weather vane just after it is struck.
At a recent rock concert, a dB meter registered 114 dB when placed 1.30 m in front of a loudspeaker on the stage, What was the power output of the speaker
If the far end of the iron rod is in an ice bath at 0°C, find the rate of heat transfer passing from the boiling water to the ice bath. Suppose there is no heat loss to the surrounding air.
A current of 7.95 A in a solenoid of length 12.4 cm creates a 0.301-T magnetic field at the center of the solenoid. How many turns does this solenoid contain
A 1.90-cm-high object is situated 19.2 cm in front of a concave mirror that has a radius of curvature of 11.1 cm. Calculate the location and the height of the image
question when nine people whose average mass is 88 kg sit down in a car they find that the car drops 1.42 cm lower on
The figure below shows a conducting rod sliding along a pair of conducting rails. The conducting rails have an angle of inclination of theta= 39.0 degrees. What is the rod's terminal speed?
Bowling balls can be made from a vaiety of substances and are required to have a circumference of roughly 27.6 inches. calculate the thickness of the shell
5 mol of an ideal gas expands isothermally at 373 K to 1.2 its initial volume. Find the heat flow into the system. The universal gas constant is 8.31 J/K · mol
Under the influence of its drive force, a snowmobile is movingat a constant velocity along a horizontal patch of snow. When the drive force is shut off, the snowmobile coasts to a halt.
q1. two cars with equal mass collide head on. one car is going 18 mph. that car is push backward about 38 feet. what is
a wedge-shaped film of air is made by placing a small slip of paper between the edges of two flat glass plates at one
Suppose 199 W of heat flows by conduction from the blood capillaries beneath the skin to the body's surface area of 1.37 m2. estimate the average distance of capillaries below the skin surface
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