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Two parallel slits are illuminated by light composed of two wavelengths. One wavelength is ?A = 630nm. The other wavelength is ?B and is unknown. On a viewing screen, the light with wavelength ?A = 630nmproduces its third-order bright fringe at the same place where the light with wavelength ?B produces its fourth dark fringe. The fringes are counted relative to the central or zeroth-order bright fringe. What is the unknown wavelength?
A rocket of mass 4.5 x10^5 kg is in flight. Its thrust is directed at an angle of 53° above the horizontal and has a magnitude of 6.80 x10^6 N. Find out the magnitude and direction of the rockets acceleration. Give the direction as an angle above ..
Three equal positive point charges of magnitude Q = 6.00? C are located at three corners of a square of edge length d = 2.6 cm, What is the magnitude of the attractive force
A simple circuit consists of a light bulb connected to the terminals of a battery. Determine the resistance and power of the bulb
What is the maximum sideways angle. What is the train's acceleration after its wheel begins to stick.
A 21.0 g copper ring at 0.000°C has an inner diameter of D = 2.54000 cm. An aluminum sphere at 108.0°C has a diameter of d = 2.54508 cm, What is the mass of the sphere
A basketball player makes a jump shot. The 0.600-kg ball is released at a height of 2.15 m above the floor with a speed of 7.40 m/s. What is the work done on the ball by air resistance
Coin is placed 14.0 from the axis of the rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on turntable until a rate of 40.0 (revolutions per minute) is reached, at that point the coin s..
A 200 pF capacitor is charged to 120 V, Calculate the maximum energy stored in the magnetic field of the inductor as the circuit oscillate
The pilot of an aircraft wishes to fly due west in a 30.50 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 190km/h. What should its speed relative to the ground be.
A body cools from 50 degre celcious to 49 degree celcious in 5 seconds. Hw long would it take to cool from 40 degree celcious to 39 degree celcious.
A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 30.0 min at 90.0 km/h, 5.0 min at 90.0 km/h, Determine the average speed for the trip
How much work is needed to push a 132- kg packing crate a distance of 2.35 m up an inclined plane that makes an angle of 26 o with the horizontal, when inclined plane is frictionless
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