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A diffraction grating is made up of slits of width = 300 nm with separation = 1150 nm. The grating is illuminated by monchromatic plane waves of wavelength ? = 560 nm at normal incidence. How many maxima are there in the full diffraction pattern? What is the angular width of a spectral line observed in the first order if the grating has 1300 slits.
Suppose that while moving into an apartment you move a refrigerator into place by sliding it across the floor. What is the least force you could exert on the refrigerator to move it
Mary observes damped oscillations of a glider on air track. she observed that the amplitude decreased to 30% of its original value after 12s
consider a system of particles in three dimensions with momentum p and energy E=cIpI,c being the constant.the system is maintained at the inverse temperature 'bita' , volume 'V' and chemical potential 'mu'.
A uniform drawbridge must be held at a 37.5 degree angle above the horizontal to allow ships to pass underneath. Find the direction of the force the hinge exerts on the bridge
A ladder of uniform density, length 4m and mass 20kg, makes an angle = 65 degrees with the horizontal and its upper end rests against a wall. What is the maximum mass that he can have such that the ladder will not slip when he reaches this point
An unstable particle having mass of 5.00x10^-27 kg is initially at rest. Find the rest masses of the fragments
A capacitor with an initial potential difference of 144 V is discharged through a resistor when a switch between them is closed at t = 0 s. At t = 10.0 s, What is the time constant of the circuit
A toy car of mass 2.0 kg is stationary and a child rolls a truck of mass 3.5kg straight toward it with a speed of 4.0 m/s. What are the velocities of the truck and the car
q1. suppose a constant ratio of 13.60 counts per minute per gram of living matter. a sample of a petrified tree was
A fully charged capacitor with a voltage of120V is discharged through a resistor. What is the voltage across the capacitor at the end ofthreetime constants
A block of wood is compressed 2.4nm when inward forces of magnitude 128N are applied to it on two opposite sides. what is the effective spring constant of the block
A step-up transformer increases 18V to 120V. What is the current in the secondary coil as compared to the primary coil? Assume 100% efficiency
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