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In a double-slit experiment, two parallel slits are illuminated first by light of wavelength 474 nanometer, and then by light of unknown wavelength. The third-order (m = 3) dark fringe resulting from the known wavelength of light falls in the similar place on the screen as the second-order (m = 2) bright fringe from the unknown wavelength. Evaluate what is the unknown wavelength?
A bucket of water with a mass of 6.0 kg is attached to a rope that is wound around a cylinder. What is the acceleration of the bucket
A wheel turns 5 revolutions in 1 s. Find what is the average angular velocity
A step-down transformer (turns ratio = 1:8) is utilized with an electric train to reduce the voltage from the wall receptacle to a value needed to operate the train. When the train is running, the current in the secondary coil is 1.8 A. What is the c..
Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of 24.1 m/s to each pellet. Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the..
A drop of unknown liquid is placed at the point on a glass surface where internal reflection is occurring at. The drop is heated until internal reflection happens. What is the refractive index of the liquid?
A string of holiday lights has ten bulbs by equal resistances connected in series. When the string of lights is connected to a 120-V outlet, the current during the bulbs is 0.06 A.
q1. a 40 g rifle bullet travelling 260 ms buries itself in a 4.0 kg pendulum hanging on a 3.0 m long string which makes
a 75m-long train begins uniform acceleration from rest. the front of the train has a speed of 23 ms when it passes a
Two resistors with values of 21 omega sign and 20 omega sign, respectively, are linked in series and hooks to a 12 V battery. How much current is in the circuit? How much power is expended in the circuit?
A stroboscope is a light that flashes on and off at a fix rate. It can be used to illuminate a rotating object, Find the shortest time between flashes of light that will make a three-bladed propeller appear stationary when it is rotating with an an..
A string oscillates according to the equation y´ = (0.175 cm) sin[(?/5.0 cm-1)x] cos[(22.6 ? s-1)t]. What is the distance between nodes
question suppose a ball thrown downward with initial velocity 3 ms instead of being dropped a what then would be its
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