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A diffraction grating has 15,000 lines per inch. What angle of deflection from the incident beam would you observe for light with a wavelength of 650 nm (a maximum)for:
a. first order b. second order
An 82 kg parachutist descends through a vertical height of 350 m with constant speed. Find out the increase in entropy produced by the parachutist; assume the air temperature is 21 degrees C.
a 200 ib student sits on a 25 ib chair. the radius of gyration of the student is 0.3 ft and the chairs radius of
when it falls back it hits the ground with speed v1=50m/s. The mass of the ball is m=20g. Evaluate what is the total work done by the drag force while the ball is in the air?
A stuntman drives a car over the top of a hill, the cross section of which can be approximated by a circle of radius 160 m. What is the greatest speed at which he can drive without the car leaving the road at the top of the hill?
two guns a and b located at xa 0 and xb 1.5 km fire at an approaching rocket. gun a fires at t 0 gun b fires at t
a ball rolls down a hill(1.8 m high) and off acurved ramp at the bottom and gets airborne, what is distance traveled (range) of the ball
The four tires of an automobile areinflated to a gauge pressure of 2.0 x 105 Pa. Determine the weight of the automobile
Thermal windows that are advertized to prevent heat gain in the sumer are tinted, double paned with a vacuum between the panes, and may be slightly silvered. Explain using the concepts of heat trnsfer how these features prevent or slow down the trans..
Scientists have found evidence that Mars may once have had an ocean 1.00km deep. What would be the gauge pressure at the bottom of such an ocean
A carnot engine operates between asource temerature of 700 degrees celsius and a sink temperatiure of 20 degrees celsius. determine the efficiency of the engine
Imagine a solar electric power plant that operates by using a gigantic mirror to concentrate light on the boiler for a steam engine. What is the maximum electric power
A block of wood is held in place against a rough wall by someone pushing on it with a force directed upward at 28 degrees above the horizontal, What is the mass of the block of wood
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