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Find what must be the resolving power of a grating allowing a spectral line at 601.10 nm to be distinguished from another line differing by 0.38 nm? (1 nm = 10-9 m).
A 0.300 kilogram mass, attached to the end of a 0.750 meter string, is whirled around in a smooth level table. determine what maximum linear speed can the mass have
if the box is moving at a constant speed of 0.35m/s and the coefficient of kinetic friction is 0.12. What is the magnitude of F.
A projectile is launched from the ground and sails across an open field. At launch, its total mechanical energy is 100 J. At its highest point, is its potential energy greater than, less than, or equal to 100 J? Explain, assuming that air resistance ..
John takes off for Vega (d ~ 25LY) traveling at 99.99% the speed of light. As soon as he arives, the ship turns around, How old are they when John returns
describe the pattern observed from diffraction around a straight edge for the straight edgeopaque disks. why do you
A body is thrown vertically upward. when it passes a point H above its starting point, its velocity is 1/3 its initial velocity. How high does it rise above its starting point
A 115 V electric iron draws 5.57 A of current. How much heat is developed per hour, What is the temperature of the bath
two rankine cycles are proposed a steam at 60 bars and 540degc is expanded to 5 bars where a portion is bled to an open
A softball, of mass m = 0.183 kg, is pitched at a speed v0 = 26.9 m/s. Due to air resistance, by the time it reaches home plate it has slowed by 11.9%. Calculate the average force of air resistance
A 390 g glass coffee cup is at a room temperature of 20?C. It is then plunged into hot dishwater at 80 ?C. how much heat does the cup absorb
a 0.223 kg ball is thrown straight up from 1.81 m above the ground. its initial vertical speed is 8.40 ms. a short time
A 100-kg steel support rod in a building has a length of 2.0 m at a temperature of 20oC. The rod supports a hanging load of 6,000 kg. Determine the work done on the rod as the temperature increases to 40oC. The change in internal energy of the rod.
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