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Light with a frequency of 2.99 x 1015 Hz ejects electrons from the surface of zinc, which has a work function of4.33 eV. What is the minimum de Broglie wavelength of the ejected electrons?
A 1000 kg car is traveling at a constant speed of 30 m/s, what is the average force applied to the car
An originally uncharged 10μF capacitor is charged by a 10 V battery through a resistance R. The capacitor reaches a potential dissimilarity of 4V in a period of 3 s after the charging began. discover the value of R.
light is incident on an equilateral glass prism at a 45 degree angle to one face. calculate the angle at which light
At room temperature a Nitrogen molecule,with mass of 4.76*10^-26 kg typically has a kinetic energy of 5.6*10^-21 J. How fast is it moving
the radius of electron is 10 -18 m . what is the minimum momentum transfer order of magnitude required to resolve the
A boat moves relative to water with a velocity which is n =2 times less than the river flow velocity. At what angle to the stream direction should the boat move to minimize drifting.
A ball rolls horizontally off the edge of a tabletop that is 1.20 m high. It strikes the floor at a point 1.63 m horizontally away from the table edge. What was its speed at the instant it left the table
A system gains 2850 J of heat at a constant pressure of 1.32 × 105 Pa, and its internal energy increases by 4100 J. What is the change in the volume of the system
What impulse Ft should be supplied to bring the ball to rest? If the ball is stopped in 0.03 s, what is the average force of the ball on the catcher's hand.
A space traveler moving at a speed of 0.65c with respect to the earth makes a tripto a distant star that is stationary relative to the earth. What would be the length of this same trip
In a test run,a certain car accelerates uniformly from zero to 20.2m/s in 2.95s. How long does it take the car to change its speed from 10.01m/s to 20.02m/s
Two balls are rolled off the tabletop that is 0.75m above the floor. how far does each ball travel horizontally before hitting the floor
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