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a double- slit interference experiment is performed with two very narrow slits separated by 0.15 mm. the experiment uses red light with a wavelength of 600 nm and projects the interference pattern onto a screen 7.5 m away from the slits.
(a) what is the distance between two nearby bright fringes on the screen?
(b) what is the distance between two nearby dark fringes on the screen? assume these fringes are all near (theta = o).
A hot ( ) lump of metal has a mass of 250g and a specific heat of 0.25 . John drops the metal into a 500g calorimeter containing 75g of water at . The calorimeter is constructed of a material that has a specific heat of 0.10 . When equilibrium is ..
Consider a square loop. It has an edge length L = 0.38 m and carries a current I = 7.74 A (runing clockwise). What is the magnitude of the torque on the loop
Explain what are the priorities: more charges or more energy stored in batteries used to propel cars or even light planes. What are the current limitations
While on an elevator, Jaden's apparent weight is 550N, When he is on the ground, the scale reads 600N, What is Jaden's acceleration while on the elevator
a parcel of land held by the partnership as an investment (basis $3,000), and equipment with a basis of $6,000. Illustrate what is her basis in the land and equipment?
Two insulated wires, each 2.50 m long, are taped together to form a two-wire unit that is 2.50 m long. One wire carries a current of 7A; the other carries a smaller current I in the opposite direction. The two wire unit is placed at an angle of 78..
A person walks first at a constant speed of 4.80 m/s along a straight line from point a to point b, What is her average speed over the entire trip
A m = 10 kg block is released from a height of h = 3 m. It travels down a frictionless circular shaped ramp to the bottom where it encounters a rough surface. Find the coefficient of kinetic friction for the rough surface
A balloon is filled with helium at a pressure of 2.4 x 10^5 pa. The balloon is at a temperature of 18 degrees C and has a radius of 0.25 m. By what factor does the radius of the balloon increase
A certain Carnot engine produces 200 J of work per cycle, what is the change in entropy of the hot reservoir per cycle
A spherical brass shell has an interior volume of 1.51 x 10-3 m3. Within this interior volume is a solid steel ball that have a volume of 0.53 x 10-3 m3. What is the volume of mercury that spills out of the hole
If camera is focused for a distance of 20m, should the lens be moved closer to the film or farther from the film to focus on an object 5 m away. Explain why.
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