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Q. A flat sheet of ice has a thickness of 3.5 cm. It is on top of a flat sheet of diamond that has a thickness of 3.6 cm. Light strikes the ice perpendicularly and travels through it and then through the diamond. In the time it takes the light to travel through the two sheets, how far would it have traveled in a vacuum.
Q. A child exerts a tangential 47.6 {N} force on the rim of a disk-shaped merry-go-round with a radius of 2.10 {m}. If the merry-go-round starts at rest and acquires an angular speed of 0.0800 {rev/s} in 3 {s}, what is its mass?
A 110 g cube of ice at 0°C is dropped into 1 kg of water that was originally at 90°C. What is an final temperature of the water after the ice has melted.
A car goes round a flat curve at a speed of 32 ms-1. If the radius of the curve is 200 m, find the minimum value for the coefficient of friction so that the car can go around the curve without skidding.
Ultrasound probes can resolve structural details with sizes approximately equal to the wavelength of an ultrasound waves themselves. What is a size of the smallest feature observable in human tissue while examined with 25 MHz ultrasound? The speed of..
A 1110 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960 N crate hangs from far end of beam.
A 12-inch cast iron water pipe that has been in service for 50 years is found to have extensive corrosion inside. How these conditions would affect friction losses in the pipe describe it.
A simple pendulum in a science museum entry hall is 3.51m long, has a 1.25kg bob at its lower end, and swings with an amplitude of 10.50 degrees. How much time does the pendulum take to swing from its extreme right side to its acute left side.
What is the instantaneous power, at a time of 0.00700 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V greatest potential difference operating at 5000 rad/s .
Sketch the shear force and bending moment diagram and Verify that the support reactions are correct.
How does this number of calories compare with the number of calories required to vary the same gram of 100 degree C boiling water to 100 degree C steam.
The atomic mass of copper is 64 g/mole, and the density of copper is 8.9 g/cm3.
Two sound sources radiating in phase at a frequency of 560 Hz interfere such that maxima are heard at angles of 0 and 25° from a line perpendicular to that joining the two sources. Find out the separation between the two sources. (Wave velocity of..
If the magnetic field strength is 0.845 T, what is magnitude and direction of the magnetic force on the wire between the poles
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