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Question: A helium-neon laser emits light that has a wavelength of 632.8 nm. The circular aperture through which the beam emerges has a diameter of 0.600 cm.
Question 1: Estimate the diameter of the beam 14.0 km from the laser.
Please give me an explanation for this question.
the center of a 1.50km diameter spherical pocket of oil is 1.50km beneath the earths surface. estimate by what
A car traveling at 20 m/sec brakes with a constant deceleration of 10m/sec^2, how far does the car travel before it stops
two identical 15 g particles each carry 5.0 mc of charge. one is held fixed and the other is placed 1.0 mm away and
A circular radar operates at a frequency of 8 GHz and has a Diameter of 0.8 m. What is the angle at the half-power bandwidth
A car starts from rest and moves along a straight line with an acceleration of a = (3s -1/3) m/s2, where s is in meters. Resolve the car's velocity and position when t = 10 s.
An RC circuit with C = 44.8 µF and R = 5.8 has a 23 V source in it. With the capacitor initially uncharged, an open switch in the circuit is closed. What is the current in the resistor at that time
82 L of an ideal monatomic gas is at an absolute pressure of 4.2 atm when the temperature is 25 C. what is the change in the internal energy of the gas
Starting from rest, a boulder rolls down a hill with constant acceleration and travels 4.00m during the first second. How far does it travel during the second second?
A 7 g bullet has a speed of 270 m/s and embeds itself into a 600 g block. How far does the block slide after the collision before coming to rest
Doubling the total energy of a particle: (a) Does not affect its momentum (b) quadruples its momentum (c) more than doubles the momentum (d) doubles its momentum (e) less than doubles its momentum I know the answer is (c) but what equation is used to..
a uniform electric field of magnitude 430 nc pointing in the positive x-direction acts on an electron which is
A wheel with moment of inertia kilogram per meter squared has a net torque of 3.50 N per m applied to it. Compute what angular acceleration does it experience
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