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Light traveling in air is incident on the surface of a block of plastic at an angle of 62.7° to the normal and is bent so that it makes a 48.1° angle with the normal in the plastic. Find the speed of light in the plastic.
A simply supported beam has a concentrated downward force P at a distance of a from the left support, as shown in the figure below. The flexural rigidity EI is constant. Find the equation of the Elastic curve by successive integration.
What is the greatest magnification that can be obtain using two of these lenses? How long is the telescope with the greatest magnification?
If the electric field strength in air exceeds 3.0*106 N/C, the air becomes a conductor. Using this fact, decide the maximum amount of charge that can be carried by a metal sphere 2.4 m in radius.
On a frozen pond, a 10.7 kg sled is given a kick that imparts to it an initial speed of vo = 2.00 m/s. find the distance the sled moves before coming to rest
A 1.4kg grindstone in the shape of a uniform cylinder of radius 0.2m acquires a rotational rate of 1800 rev/s from rest over a 6.0 s interval at constant angular acceleration
A bucket holding a cartoon character is dangling from a rope above a well from the windlass which raises the bucket from the well. What is the rotational inertia of the windlass
A package falls out of an airplane that is flying in astraight line at a constant altitude and speed. If you could ignorethe air resistane, what would be the path of the package asobserved by the pilot
A blacksmith heats a 1.9 kg iron horseshoe to 480 degree C, then plunges it into a bucket containing 10kg of water at 20 degree C. The specific heat of iron is 447 J/kgK. What is the final temperature.
The temperature of the surface of a certain star is 7500K. Most hydrogen atoms at the surface of star are in the electronic ground state. What is the approximate fraction of hydrogen atoms that are in the first excited state (and therefore could e..
a bat moving with speed of 3.25 ms and emitting sound of 35.0 khz approaches a moth at rest on a tree trunk. a what
The hydrogen spectrum has a red line at 656 nm and a violet line at434 nm. What angular separation between two spectral lines obtained by a diffraction grating that has 4880lines/cm? (Suppose that the light is incident normally on the grating.)
the drawing shows six point charges arranged in a rectangle. the value of q is 3.89 oc and the distance d is 0.481 m.
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