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Your friend has been given a laser for her birthday. Unfortunately, she did not receive a manual with it and so she doesn't know the wavelength that it emits. You help her by performing a double-slit experiment, with slits separated by 0.36 . You find that the two bright fringes are 5.5apart on a screen 1.6 from the slits. What is the wavelength the laser emits?
An air-track glider is attached to a spring. The glider is pulled to the right and released from rest att = 0. what is the amplitude of the ossilation
a 1kg mass hangs from a cord wrapped around a solid disk pulley with a mass of 3kg and radius 25cm. the cord is 2m long
Compute the voltage drop along a 23 length of household no. 14 copper wire (used in 15- circuits). The wire has diameter 1.628 and carries a 12 current.
An object with mass m1 = 4.90 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a pulley, Find the magnitude of the acceleration of each object
A hollow, conducting sphere with an outer radius of 0.246m and an inner radius of 0.195m has a uniform surface charge density of +6.35×10?6C/m^2. find the strength of the electric field just outside the sphere
One of the limitations on the design of modern windmills for the generation of electricity is that the tip of the blades must not exceed the speed of sound in air, What is the acceleration of the blade tips
The engineer takes 0.400 seconds to react, and then applies the brakes. At what rate must the passenger train then decelerate in order to avoid a collision?
some types of molecules that do not possess an intrinsic electric dipole moment can be given one by an external
A photon is emitted when a hydrogen atom undergoes a transitionfrom the n = 5 state to the n = 3 state. Calculate the energy (in electron volts) of the emitted photon
What is relative velocity
Planet-X has a mass of 4.25×1024 kg and a radius of 6050 km. What is the Second Cosmic Speed i.e. the minimum speed required for a satellite in order to break free permanently from the planet
Two equally charged particles each have a mass of 0.015kg. They are suspended by a light string with a 60 degree angle between them. find the magnitude of the repulsive electric force
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