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Q. One of the beams of an interferometer, as seen in the figure below, passes through a small glass container containing a cavity D = 1.29 cm deep. When a gas is allowed to slowly fill the container, a total of 229 dark fringes are counted to move past a reference line. The light used has a wavelength of 628 nm. Calculate the index of refraction of the gas, assuming that the interferometer is in vacuum.
Q. A 200 g block hangs from a spring with spring constant 10 N/m. At t=0 s the block is 23 cm below the equilibrium point and moving upward with a speed of 125 cm/s. What are the block's oscillation frequency? What is the block's distance from equilibrium when the speed is 57 cm/s? What is the block's position at t=2.0s?
Question: For all generators: Eg = 1\"\"0°, χ1 = j0.25 For all transformers: χ1 = j0.75 [A] Write the Y and Z matrices. B] Write the model equation. [C] For each bus, find V, ρ and Q.
A drinking straw 20 cm long and 3 mm in diameter stands vertically in a cup of juice 8.0cm in diameter. A section of straw 6.5cm long extends above the juice. A child sucks on the straw, and the level of juice in the glass begins dropping at 0.23c..
What is order of the layers from top to bottom
An electric dipole is formed from +/-4.0 nC point charges spaced 3mm apart. The dipole is cantered at the origin, oriented along the y-axis. What is an electric field strength at point (x,y) = ( 6.0 cm, 0 cm)
A diesel engine does not use spark plugs to ignite the fuel and air in the cylinders. at the place of, the temperature required to ignite the fuel occurs because the pistons compress the air in the cylinders.
A stretched rubber band has the length of 0.04 m and a fundamental frequency of 462 Hz. What is the speed at which waves travel on the rubber band.
The lander is 8.2 meters above the surface and has the downward speed of 0.89 m/s while the engine is cut off. What is the speed of the lander just before it touches the surface.
In a nebula, the amount of interstellar extinction in the visible wavelength band is 1.1 magnitudes. The thickness of the nebula is estimated to be 16 pc and it is located 458 pc away.
What is wave speed
A 0.255 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.200 kg puck that is initially moving along the x axis with a velocity of 2.06 m/s. After the collision, the 0.200 kg puck has the speed of 1.02 m/s at an ang..
Vector A has a magnitude of 10m and makes an angle of 78o with the positive x axis. Vector B also has a magnitude of 13m and is directed along the negative x axis. Enter your answers in distance then angle (in degrees).
A bar AB of negligible mass and length 2 m balanced at its midpoint a 4 kg and 5 kg masses are suspended from both ends. A 4 kg mass is 0.4m away from the midpoint. At what point the mass of 5 kg is suspended to a bar keep the balance.
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