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A ray of light is incident on a plane surface separating two sheets of glass with refractive indexes 1.73 and 1.59. The angle of incidence is 64.0°, and the ray originates in the glass with n= 1.73.
Compute the angle (in degrees) of refraction.
Water flows through a horizontal tube of diameter 2.8 centimeter that is joined to a second horizontal tube of diameter 2 centimeter. Find which tube has the higher speed of flow
How would you determine the density of the paper that you use in a photocopy machine and computer printer, given the fact that a single 8.5[in] by 11[in] sheet has a thickness that is too small to directly measure with a ruler
An electric dipole is formed from ± 2.0 nC point charges spaced 1.0mm apart. What is the electric field strength at point (x, y) = (15 cm, 0 cm)
A cardiac defibrilator is used to shock a heart that is beatingerratically. A capacitor in this device is charged to 6000 V andstores 200 J of energy. What is its capacitance?
Suppose a flat roof has a surface area of 1.18000×102 m2. Presume the air inside the building (and under the roof) is at atmospheric pressure, 1.01325×105 Pa, What is the force with which the air inside the house pushes the roof upward
Five-gram samples of copper and aluminum are at room temperature
Three equal point charges, each with charge 1.10 , are placed at the vertices of an equilateral triangle whose sides are of length 0.200. Calcualte the electric potential energy of the system?
As a 75-slug automobile travels along a horizontal, 3200-ft section of road, it changes speed from 5 mi/h to 60 mi/h. If the friction force acting on the automobile is 25 lbf, what is the total work?
A laser beam enters a 15.5 cm thick glass window at an angle of 37.0° from the normal. How long does it take the beam to pass through the plate
Suppose that earth was formed as molten rock at some very high temperatures. Estimate the time for the earth to cool to 300 K.
A rotating fan completes 1000 revolutions every minute. Consider a point on the tip of a blade, at a radius of 0.11 m. What is the speed of the point
A copper bar of thermal conductivity 401 W/(m · K) has one end at 108° C and the other end at 18° C. What is the rate of heat conduction along the bar
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