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What is the relationship between the heat of fusion of a solid and the amount of heat needed to melt it?
A 45 kg woman stands up in a 60 kg canoe of length 5 meters.She walks from a point 1 meter from one end to a point 1 meter fromthe other end. how far does the canoe move during this process
Each second, a nuclear power plant generates 2000 MJ of thermal energy from nuclear reactions in the reactor's core. What is the maximum possible thermal efficiency of the power plant
a beam of accelerated protons from the large hadron collider can be used to spray paint an insulator with protons.
Diffracted light from a circular aperture is viewed on a distant viewing screen, Find the radius of the aperture if the wavelength of light is 680 nm
A charge q = -6.0 µC is moved 0.25 m horizontally to point P in a region where an electric field is 250 V/m directed vertically, as shown. What is the change in the electric potential energy of the charge?
A thin, uniformly charged ring of radius a = 10cm carries a total electric charge Q=3.6microCoulombs and rotates with angular speed w = 170rad/s counterclockwise about the z-axis
A long straight wire has fixed negative charge with a linear chargedensity of magnitude 4.0 nC/m. The wire isto be enclosed by a coaxial, thin-walled, nonconducting cylindricalshell of radius 1.6 cm.
Light of a wavelength 450 nm is incident on a sodium emitter in a photoelectric effect apparatus. What is the cutoff frequency for the emitter
consider a uranium nucleus to be a sphere of radius r 7.4 times 10-15 m with a charge of 92e distributed uniformly
A converging lens has a focal length of f = 43 cm for blue light and f = 53 cm for red light. An object is placed 140 cm in front of the lens and is illuminated with white light. Chromatic aberration causes the image formed with blue light to be a..
A handball of mass 0.10 kg, traveling horizontally at 25 m/s, strikes a wall and rebounds at 19m/s. What is the change in the momentum of the ball.
Monochromatic light of wavelength 600nm is incident normally on a optical transmission grating of spacing 2.0μm. calculate (a) the angular position of the maxima; (b) the number of diffracted beams; (c) the maximum order possible.
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