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The light shining on a diffraction grating has a wavelength of 490 nm (in vacuum). The grating produces a second-order bright fringe whose position is defined by an angle of 9.85°. How many lines per centimeter does the grating have?
A light beam is incident on heavy flint glass (n = 1.62) at the polarizing angle. Calculate the angle of refraction for the transmitted ray
You are the technical consultant for an action-adventure film in which a stunt calls for the hero to drop off a 24.9-m tall building and land on the ground safely at a final vertical speed of 3.87 m/s. What is the angular acceleration of the drum
During a ballet performance a ballerina leaps into the air. If the dancer leaped at 90 degrees, what was the dancers initial speed
The near point of a naked eye is 32 cm. When an object is placed at the near point and viewed by the naked eye, Determine the angular size of the image
A powerful motorcycle can produce an acceleration of 3.00 m/s2 while traveling at 90.0 km/h. What force does the motorcycle exert backward on the ground
How much work is done on the car by the engine when accelerating the car from rest to 90m/s, What is the average power delivered by the engine
An open railroad car of mass 2496 kg is coasting with an initial speed of 17 m/s on a frictionless, horizontal track. How much water (in kilograms) has accumulated in the car
A diving board of length 3.00m is supported at a point 1m from the end, and a diver weighing 520 m stands at the free end . The diving board is of uniform cross section and weighs 270m.
Find out all intermediate results to at least four-digit accuracy to minimize roundoff error. m/s2 direction 3° from the direction of velocity towards center of the circle
A student sits on a freely rotating stool holding two dumbels, each of mass of 3.00kg. find the kinetic energy rotating system before and after he pulls the dumbbells inward
q1. an ideal gas is expanded isothermally from 20 l to 30 l. throughout this process 6 j of energy is expended by the
Vectors A and B have scalar product -3.00 and their vector product has magnitude 5.00. What is the angle between these two vectors
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