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1,) Light that has a wavelength of 668 nm passes through a slit 6.73 multiply.gif 103 nm wide and falls on a screen that is 1.55 m away. What is the distance on the screen from the center of the central bright fringe to the third dark fringe on either side?2,) A dark fringe in the diffraction pattern of a single slit is located at an angle of θA = 38o. With the same light, the same dark fringe formed with another single slit is at an angle of θB = 62o. Find the ratio WA/WB of the widths of the two slits.
The sound level measured in a room by a person watching a movie on a home theater system varies from 60 dB, Approximately how many times louder is the latter sound?
A 85 kilogram crate sits in a 280 kilogram boat. Find what is the acceptable range of forces that a boat propeller can exert on the water
The RLC circuit below is being driven by an AC source with a frequency of 47.77 Hz resulting in a maximum current Imax = 0.25 amps. Calculate the impedance of this circuit.
A roller coaster car travels down a hill and is moving at 18 m/s as it passes through a section of straight, horizontal track. what is the speed of the car at the top
When a current flows in an aluminum wire of diameter 4.97mm, the drift speed of the conduction electrons is 1.49x10^-4 m/s. What is the electron current in the wire
A car drives up a ramp inclined at 10 degrees above the horizontal,reaching a speed of 40 m/s at the end. It will jump a canyonthat is 101 meters wide. The lip of the takeoff ramp is 201meters above the floor of the canyon.
Compute the sum of squares between treatments. Compute the mean square between treatments.
Determine the forces that support posts 1 and 2 (separated by 1.4 m) exert on the board when a 60-kg person stands on the end of the board 2.8 m from support post 2. Use positive values for the upward forces and negative values for the downward fo..
A 3kg ball traveling to the right with a speed of 4 m/s collides with a 4 kg ball traveling to the left with a speed of 2 m/s. The total momentum of the two balls after the collision
If a vehicle is traveling at velocity v and takes a distance d to stop, then how fast is a vehicle traveling if it takes a distance of 3d to stop. suppose mass and acceleration are equal.
A closed ended manometer is used to measure the pressure in a tank of gas. what is the gauge pressure (in Pa) in the tank
an electron moving at 3.70 x 103 ms in a 1.45 t magnetic field experiences a magnetic force of 1.40 x 10-16 n. what
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