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A glass is half-full of water, by a layer of vegetable oil (n = 1.47) floating on top. A ray of light travelling downward during the oil is incident on the water at an angle of58.0°. Decide the critical angle for the oil-water interface
a thunderstorm drops half an inch of rain which is about 1.27cm on chicago which covers are area of about 228 square
question a 5.0- strand of dna carries charge per of length. treating it as a charged line whats the electric field
A 1-cm-thick layer of water stands on a horizontal slab of glass. After entering the glass, what is the ray's angle from the normal
An airplane goes North with an average speed of 100m/s, What is the plane's velocity relative to the ground
A 49.2-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.637 and 0.439, respectively. What horizontal pushing force is required
The distance between a carbon atom (m = 12 amu) and a nitrogen atom (m = 14 amu) in a CN molecule is 0.1 nm. How far from the carbon atom is the center of mass of the atom
A 362 g object is attached to a spring and executes simple harmonic motion with the period of 0.200 s. If the total energy of the system is 6.71 J.
Suppose the insulating qualities of the wall of a house come mainly from a 4.0-in. layer of brick and an R-19 layer of insulation, What is the total rate of heat loss through such a wall
a mass is attached to a spring. it oscillates at a frequency of 1.27 hz when displaced a distance of 2 cm from
A light ray in air is incident on an air to glass interface at anangle of 45 degrees and is refracted at an angle of 30 degrees to the normal. What is the index of refraction of the glass?
A 5.8 m diameter merry-go-round is rotating freely with an angular velocity of 0.90 rad/s. What is the angular velocity of the merry-go-round now
On earth, two parts of a space probe weigh 13500 N and 3790 N. These parts are separated by a center-to-center distance of 14.4 m, Find the magnitude of the gravitational force
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