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The second-order fringe of 680 nm light is observed at an angle of 16° when the light falls on two narrow slits. How far apart are the slits?
µm
If we were able to observe the third-order fringe, at what angle would we expect it to be observed?
°
Regarding the Earth and a cloud layer 750m above the Earth as the "plates" of a capacitor, calculate the capacitance. Suppose cloud layer has an area of 1 km2 and that the air between cloud and ground is pure and dry.
The air around a spinning 142g baseball (below) of radius 3.55cm experiences a faster speed on the left than the right side, determine the pressure difference between the right and left sides of the ball
consider two blocks of wood, one having mass of 1 kg and the other having a mass of 2 kg. What is the net force of the bottom block
A projectile is fired at an upward angle of 45° from the top of a 312 m cliff with a speed of 220 m/s. What will be its speed when it strikes the ground below
A 120cm3 box contains helium at a pressure of 1.50atm and a temperature of 80.0?C. What is the final pressure in each box
An antitank weapon fires a 4kg rocket which acquires a speed of 50.0 m/s after travelling 90 cm down a launching tube. Assume the rocket was accelerated uniformly, what is the average force acted on it.
q1. a 36.0 kg uniform beam is attached to a wall with the hinge while its far end is supported by a cable such that the
Keilah, in reference frame S, measures two events to be simultaneous. Event A occurs at the point (37.0 m, 0, 0) at the instant 9:00:00 Universal time on January 15, 2010. What time interval elapsed between the events
Two 10-cm-diameter charged rings face each other, 21.0cm apart. Both rings are charged to + 50.0nC. What is the electric field strength at the midpoint between the two rings
A variable-speed drill, initially turning at 250 rpm, speeds up to 1300 rpm in a time interval of 0.1 s. What is its average rotational acceleration
A certain organ pipe, open at both ends, produces a fundamental frequency of 256 in air.If the pipe is filled with helium at the same temperature, what fundamental frequency will it generate ? Take the molar mass of air to be 28.8 and the molar ma..
Suppose a monochromic light strikes a grating at normal incidence. The first order diffractions lines appear at the angle 23°, what is the frequency of the light that passes through
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