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A ray of light in air makes an angle of incidence of 30.2 as it enters an unknown liquid. the refracted ray in the fluid meassured to be 22.5. Find the index of refraction of the unknown liquid. What substance might it be?
Coherent light with wavelength 599nm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00m from the slits. The first-order bright fringe is a distance of 4.84mm from the center of central brigh..
Two microscopes are placed one on top of the other. They are in contact at one end but a hair separates them at the other end. determine the thickness of the hair?
As the crate is sliding down the ramp, you find out the washer is at rest with respect to the crate when the string makes an angle of 73 with the top of the crate.
Compute what resolving power is needed to measure with a spectrograph the natural line width of the alpha particles from Po-212
A wave on a string is described by D(x,t)=(2.00cm)sin[(12.57rad/m)x?(638rad/s)t],where x is in m and t is in s. The linear density of the string is 5.00g/m, What is the maximum speed of a point on the string
As a 1240-kg truck travels up a 15.4-m-high hill, the nonconservative forces of friction and the force generated by the engine do work on the truck. determine the change in the truck's kinetic energy
a wheel is spinning freely on its axis with an angular velocity w of 2 rad/s. What is its renitic energy if the angular velocity is increased to 10 rad/s
A uniform electric field with a magnitude of 250N/C is directed in the positive x direction. A 12uC charge moves from the origin to the point (20.0 cm, 50.0 cm). what is the change in electrical potential energy of the system as a result of the ch..
It eventually launches horizontally off of the table and takes the path of a projectile until it hits the ground 40 centimeters from the edge of the table.
An airtight box has a removable lid of area 1.10 multiplied by 10-2m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 0.80 multiplied by 105 Pa.
A proton moves perpendicularly to a uniform magnetic ?eld B with a speed of 1.9 × 10 ^7 m/s and experiences an acceleration of 8 × 10 12 m/s 2 in the positive x direction when its velocity is in the positive z direction. The mass of a proton is 1...
A 47 g golf ball is driven from the tee with an initial speed of 50.0 m/s and rises to a height of 24.8 m.
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