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The single slit diffraction pattern shown below was made with light with λ = 570 nm. The screen was 2.6 m from the slit. If the slit had a width 8 mm, what is the width w of the central maximum in cm?
What is the piston height if the temperature is 30C. How far apart are the plates if there's air between them.
There is a curling disc of mass m =20dkg at rest on the ice.Another disc of the same kind collides head-on (b=0) into it at aspeed of v =20m/s. what is the speed of the two discs after the collision
Two pole-vaulters just clear the bar at the same height. The first lands at a speed of 7.84 m/s, while the second lands at a speed of 8.32 m/s. find the speed at which the second vaulter clears the bar
A star of mass 2.0 1028 kg that is 4.6 x 1020 m from the center of a galaxyrevolves around that center once every 4.6 x 108 years. estimate the number of stars in the galaxy
A spacecraft is in empty space. It carries on board a gyroscope with a moment of inertia of Ig = 24.0 kg · m2 about the axis of the gyroscope. The moment of inertia of the spacecraft around the same axis is Is = 5.00 105 kg· m2.
A clown at a birthday party has brought along a helium cylinder,with which he intends to fill balloons. What is the maximum number of people who will get a balloon
A small ball with mass m is attached to a string, which goes over a pulley and makes a small angle swing. Derive the period of this simple pendulum
Find the surface tension force on water inside a tube and height to which the water rises in the tube.
calculate the depth of penetration if skin for the average and maximum beta energies emitted by cobalt-60. provide your
A 100 kg sled is slid across a smooth ice field by a group of four dogs tied to the sled pulling with a 350 N force along a rope at an angle of 20 degrees above the horizontal. (a) If the sled travels at a constant speed, find the drag force on the s..
A particle with a charge of -60.0 nC is placed at the center of a nonconducting spherical shell of inner radius 20.0 cm and outer radius 24.0 cm, Calculate the speed of the proton
Although there are a lot of ways to detect planets, can someone further expand on the techniques and methods used to determine the composition of planets detected outside the solar system ?
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