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A student holds a laser that emits light of wavelength 633 nm.The beam passes through a pair of slits separated by 0.300 mm, in aglass plate attached to the front of the laser. The beam then fallsperpendicularly on a screen, creating an interference pattern onit. The student begins to walk directly toward the screen at 3.00m/s. The central maximum on the screen is stationary. Find thespeed of the first-order maxima on the screen.
A 30 g ball of clay is thrown horizontally at 20 m/s toward a 1.7 kg block sitting at rest on a frictionless hi surface. The clayts and sticks to the block. What is the speed of the block and clay right after the collision?
What is the smallest thickness of a soap film (n = 1.33) that would appear black if illuminated with 450 -nm light? suppose there is air on both sides of the soap film.
An electromagnet produces a magnetic field of 0.540T in a cylindrical region of radius 2.70cm between its poles. What magnitude of force is exerted on the wire
A beanbag is thrown horizontally from a dorm room window a height h above the ground. find the direction of the beanbag's velocity
The space shuttle is in a 150km -high circular orbit. It needs to reach a 590km -high circular orbit to catch the Hubble Space Telescope for repairs. How much energy is required to boost it to the new orbit
Reply in m/s. Also, why does the car's mass not matter.
an average person uses 12000watt-hours per day, the cell is used for 6 hours a day at an incident of 1000wats/m^2, calculate the area need to supply this amount of power
A projectile is shot straight up from the earth's surface at a speed of 1.20×10^4 km/hr. How high does it go
A head-on, elastic collision between two particles with equal initial speed vleaves the more massive particle (massm1) at rest. Find the final speed of the less massive particle
An unstable high-energy particle is created in the laboratory, and it moves at a speed of 0.988c. What is the proper distance traveled
The magnitude of the force of friction acting on the block between A and is 1.2N and points A and B are 0.5 m apart. If the kinectic energies of the block at A and B are 4J and 5.6 J, respectively, how much work is done on the block by the force p..
A helicopter has two blades, each of which has a mass of 270 kg and can be approximated as a thin rod of length 6.7 m. The blades are rotating at an angular speed of 54 rad/s. (a) What is the total moment of inertia of the two blades about the axis o..
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