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Q1. An underwater diver sees the sun 56 above parallel.How high is the sun above the horizon to a fisherman in a boat above the diver?
Q2. You have a hand-crank generator with a 100-turn coil (each turn having an area of 0.0500 m2), which can spin through a uniform magnetic field that has a magnitude of 0.0500 T. You can turn the crank at a maximum rate of 3 turns per second, but hand crank is connected to the coil through a set of gears that makes the coil spin at a rate 6 times larger than the rate at which you turn the crank. What is the maximum emf you can expect to get out of this generator?
What is wave speed
A gasoline engine absorbs 2,600 J of heat and performs 1,000 J of mechanical work in each cycle. Find the total of heat expelled in each cycle.
Use the binomial expansion to find an approximate expression
A 73.0 kg construction worker stands at the far end of the beam.What is the magnitude of the torque about the point where the beam is bolted into place .
Find out the vertical component of the reaction force
How much energy is transferred to the water as heat
A diffraction grating with 395 lines/mm is 1.00 m in front of a screen. What is the wavelength of light whose first-order maxima will be 16.9 cm from the central maximum on the screen.
Potassium iodide has an interplanar spacing of d = 0.296 nm. A monochromatic X-ray beam shows first-order diffraction maximum while the grazing angle is 7.8°. Compute the X-ray wavelength λ .
What is the coefficient of static between crate and incline
If the magnetic field strength is 0.845 T, what is magnitude and direction of the magnetic force on the wire between the poles
Estimate mean and maximum velocities for a liquid
If the 2 kg mass slides on a horizontal frictionless surface, what is the speed of the mass 4 kg while it has fallen a distance 0.4 m downward from its rest position.
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