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Determine the moment of inertia of a long bar of length "L" rotating about an perpendicular to the bar at (1 / 4) of its length. Give the result in terms of the length of the bar "L" and its mass "M" (ignore the thickness of the bar).
In an experiment like you are going to do in Investigation 1 of lab this week, you count the number of beta rays from a 137Cs source. What is the average number of counts
a candle is placed at a distance of 15 cm in front of a concave mirror of radius 40 cm. where is the image of the candle
A resistor and an inductor are connected in series across an AC voltage source oscillating at 60 Hz. What is the rms voltage of the source
A long, straight wire carries a current of 2.70 A. An electron is traveling in the vicinityof the wire. At the instant when the electron is 4.44 cm from the wire and traveling with a speedof 7.00 104 m/s parallel to the wire inthe direction opposit..
You have a wire of length L = 2.1 m for making a square coil of a dc motor, Find the maximum torque exerted on the coil when the wire is used to make a single-turn square coil
A cannon tilted up at a 33 degree angle fires a cannon ball at 64.0 m/s from atop a 26 meter high fortress wall. What is the ball's impact speed on the ground below
Now adapt the ideas of the energy and entropy of mixing to gasses in different cylinder. The temperature is fixed (there is a thermal reservoir so that all changes are done isothermally). A system starts with n(He)=10 moles of helium in a cylinder..
A 75 g chunk is heated to 100 Celsius and the dropped into 0.5 Kg of water initially at 22 Celsius. What is the final temperature of the chunk of metal
If two successive overtones of a vibrating string are 420 Hz and 480 Hz, what is the frequency of the first overtone
A charge of -2.85 µC is fixed in place. How far does the particle travel before its speed is zero
The elevator is firstly at rest. How far does the elevator move even as accelerating to full speed from rest.
a 2.30 times 104- rocket blasts off vertically from the earths surface with a constant acceleration. during the motion
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