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Consider a 2.4 kg object sliding along a horizontal frictionless surface at 5.2 m/s. This object strikes a horizontally mounted spring with spring constant 220 N/m, which slows the object and brings it to rest.
a) Choose and sketch initial and final events below. These events should be selected to assist you in finding the maximum compression of the spring by the object.
b) Find initial and final kinetic energies.
c) Find initial and final gravitational potential energies.
d) Find initial and final elastic potential energies.
e) Determine the spring's maximum compression.
A silt of width a is illuminated bymonochromatic light of wavelength 650nm at normal incidence. Calculate the value of a , when the first minimum falls at an angle of diffracction 30 degree
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