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A helium-neon laser of = 633 illuminates a diffraction grating. The distance between the two m= 1 bright fringes is 36.0 cm on a screen 2.40 m behind the grating.
1. What is the spacing between slits of the grating?
2. What is the line density of the grating?
A car moving at 10.0 m/s encounters a bump that has a circular cross-section with a radius of 30.0 m. when the car is at the top of the bump
A container of hot water at 50 degrees cools to 49 degrees in how many seconds when it is placed in a room that is t 20 degrees. use newton's law of cooling to find the time it will take for the container to cool from 50 degrees to 49 degrees.
The speed of light in a material is 0.52×c. What is the critical angle (in degrees) of a light ray at the interface between the material and a vacuum
A drag racer crosses the finish line of a 304.8 m track with a final speed of 126 m/s. how long would it take to finish the race
Consider a stack of paper 3.0 meters high. each sheet of paper is the stack has a thickness of 0.01 centimeter
Water flows trough a normal garden hose at 2 m/s. how fast does the water emerge from the hose nozzle
Three forces act on a body which moves with constant velocity. One force is 9 N acting at an angle of 70°, What is the angle of the third force
At the instant of engine burnout, the rocket has risen to 52 m and acquired a velocity of 40 m/s. The rocket continues to rise in unpowered flight, reaches most height and falls back to the ground.
A wheel with a mass of 40 kg, and a rim radius of 30.0 cm is mounted vertically on a horizontal axis. Find the angular acceleration of the wheel and the linear acceleration of the block
The Specific heat capacity at constant pressure of a gas varies with the temperature according to the expression: C_p = ( a + bT - c/T^(2) )
Suppose that the displacement of an object is related to time according to the expression x = Bt2. What are the dimensions of B?
A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above the knee in the front of her leg. What is the force exerted by the muscle if its effective perpendicular lever arm is 2.10 cm
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