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Two narrow slits are illuminated by a laser with a wavelength of 581nm. The interference pattern on a screen located x = 4.50m away shows that the third-order bright fringe is located y = 7.50cm away from the central bright fringe. Calculate the distance between the two slits.
q1. a race car has a mass of 718 kg. it starts from rest and travels 45.0 m in 3.0 s. the car is uniformly accelerated
A submerged solid object displaces a. its own volume in the liquid. b. more than its own volume in the liquid. c. less than its own volume of liquid. I am confused with the wording. Why do they use volume instead of weight?
Assuming a fica tax rate of 8% on the first 106,800 in wages, and a federal income tax rate of 20% on all wages, illustrate what would be an employee's net pay for the year if he earned 108,000?
Two very large parallel plates are oppositesly and uniformly charged. if the field between the plates is 1.7 x 10^6 N/C, How dense is the charge in each plate in muC/m^2
A solid sphere has a temperature of 408 K. The sphere is melted down and recast into a cube that has the same emissivity, What is the cube's temperature
A 30-g bullet initially traveling 500 m/s penetrates 12 cm into a wooden block. What average force does it exert on the block
Assume the wheel has a constant negative angular acceleration of magnitude 2.50 rad/s2. Explain through how many radians has the wheel turned during the interval found in (a) which is 4.98?
A stone is thrown horizontally outward from the top of a bridge. The stone is released 19.6 m above the street below. determine the total time that the stone is in the air
a skater spins with an angular speed of 12 rad/s with her arms outstretched. determine the percentage change in her kinetic energy
A car of mass 960 travels at a speed of 30 along the straight road. The driver sees a red traffic light ahead, and applies brakes. The coefficient of friction between the car tyres and the road is 0.88. Take the acceleration due to gravity to be 9.80..
A double slit is opposite the center of a 1.6-m wide screen 2.4 m from the slits. How many fringes are visible on the screen if the slit is illuminated by 602-nm light
A charge of -3.00 nC is placed at the origin of an x-y coordinate system, and a charge of 2.00 nC is placed on the y-axis at y=4.00cm. What are the magnitude and direction of the total force
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