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1.A double slit experiment is performed using a slit separation of 0.12mm with a screen placed 80cm away. There are 18mm between the first and seventh nodal lines. What wavelength of light was used?
2.A single slit interference pattern using blue light with a wavelength of 438nm creates a central maximum that is 6.5cm wide. If the slit width is 17.5micrometres, how far away is the screen?
A spherical shell has inner radius R_1, outer raduis R_2, and mass M, distributed uniformly throughout the shell. The magnitude of the gravitational force exerted on the shell by a point particle of mass m,located a distance d from the center, out..
The fundamental frequency of an open-open tube is 1800Hz when the tube is filled with "zero celicus" helium. What is its frequency when filled with "zero celicus" air? The speed of sound in helium is 970m/s and in air is 331m/s . Express your answer ..
At 20 C, a steel rod of length 40.000 cm and a brass rod oflength 30.000 cm, both of the same diameter, are placed end to endbetween two rigid supports 70.000 cm apart, How far from its old positioin is the new junction
approximately 0.1 of the bacteria in an adult humans intestines are escherichia coli. these bacteria have been observed
A divers lungs hold 0.0050 m^3 of air at sea level, where the pressure is 101.3 kPa. what is the volume of the air in his lungs at a depth of 3 m
Electromagnetic waves and sound waves can have the equal frequency. Find the wavelength of a 1.20 kHz electromagnetic wave
Given two vectors A? = 4.00 i^+ 7.80 j^ and B? = 5.60 i^? 2.00 j^ , find the scalar product of the two vectors A? and B?. Find the angle between these two vectors
Consider the circuit shown in the figure below, where C1 = 8.00 mu F, C2 = 9.00 mu F, and delta V = 22.0 V. Capacitor C1 is first charged by closing switch S1. Switch i is then opened, and the charged capacitor is connected to the uncharged capac..
A refrigerator has a coefficient of performance of 1.20 , and it extracts 8.15 J of heat from the cold reservoir during each cycle.
A well-insulated 0.0423 µF capacitor is connected across a line carrying a 3.75 kV rms sinusoidal voltage with frequency 680 Hz. What is the impedance of the capacitor
A boat has a mass of 6800 kg, Its engines generate a drive force of 4100 N, due north, while the wind exerts a force of 800 N, What is the magnitude and direction of the boat's acceleration
In the plane y=0, what is the coordinate transformation matrix d(x^mu)/d(x^v') relating (x,z) to (nu,theta)?
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