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Q1. Two slits are illuminated by a 621nm light. The angel between the zeroth-order bright band at the center of the screen and fourth-order bright band is 18degrees. The screen is 141cm from the double-slit. What is the distance between the two slits?
Q2. An ionization chamber was exposed to gamma rays and 2x10^12 ion pairs were produced per gram of CO2 (W=33 ev/ip). What was the absorbed dose in the carbon walls? The average mass stopping powers of graphite and CO2 for the photons are, respectively, 1.648 and 1.680 MeV cm^2/g
A resonant circuit in a radio receiver is tuned to a certain station when the inductor has a value of 1.50 µH and the capacitor has a value of 2.20 pF. Find the frequency of the radio station
A 80 kg football player stand at the end of a uniform 8m, 50kg diving board supported as shown. Determine the forces exerted by the two supports.
An object is so = 2 m from the front side of a converging lens with focal length f1 = 1 m, Draw a ray diagram of the situation, Where is the final image now, What is the new magnification
A positron is a particle with the same mass and magnitude charge as an electron, but a positron has a positive charge. how fast is the positron moving
An electron with kinetic energy 3.90 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 12.0 cm. find the frequency of circling
a 2 kg object attached to a horizontal string moves with constant speed in a circle on a frictionless horizontal surface. Find the radius of the circle
During the propulsive phase of a dive (pushing off the diving board), the net vertical and horizontal forces were 100 N and -100 N, what was the net angular impulse applied to the body
What is the smallest distance required to stop the plane
A converging lens of focal length f1=11.0 cm is placed 52.0 cm to the left of a converging lens of focal length f2 = 22.0 cm. What is the overall magnification of the lens combination
A cylindrical piece of metal 8.50 cm tall with a radius of 1.95 cm has a specific gravity = 4.0, what is the mass of the cylinder in units of grams
An object is placed to the left of a convex lens and on the optical axis. find the magnification of the image formed by the lens
An air puck of mass 0.897 kg is tied to a string and allowed to revolve in a circle of radius 1.23 m on a frictionless horizontal table. What is the speed of the puck
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