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In one of the many books published by the Greek astronomer Ptolemy called Optics, Ptolemy reports the results of refraction experiments he conducted by observing light passing from air into water. His results are as follows: angle of incidence = 10.0 degrees, angle of refraction = 8.00 degrees; angle of incidence = 20.0 degrees, angle of refraction = 15.5 degrees. Find the percentage error for each of Ptolemy's measurements.
A wire having mass per unit length of 0.420 g/cm carries a 2.40 A current horizontally to the south. What are the direction and magnitude of the minimum magnetic field
An ambulance traveling at 47 m/s approaches a car heading in the same direction at a speed of 37 m/s. At what frequency does the driver of the car hear the siren
In a simple model for a radioactive nucleus, an alpha particle ( m = 6.64 * 10^-27 kg) is trapped by a square barrier that has width 2.0 fm and height 30.0 MeV. What is the tunneling probability
Batman (mass = 101 kg) jumps straight down from a bridge into a boat (mass = 590 kg) in which a criminal is fleeing. What is the velocity of the boat after Batman lands in it
a fox locates its prey under the snow by slight sounds rodents make. the fox then leaps straight into the air and then
An object falls off of a pier into the ocean (salt water) where it displaces a total volume of 2.2 cubic meters of sea water
Two spheres are mounted on identical horizontal springs and rest ona frictionless table, as in the drawing. When the spheres areuncharged, the spacing between them is dx =0.05 m, and the springs are unstrained.
Examine the assumptions and limitations of the statistical study. What would you have done differently in this case? Explain your answer. Identify how the authors applied statistical testing to the problem
A bullet mass 7.1 grams is fired from a gun with a muzzle velocity of 1,078 mph. It embeds itself 77.3 cm in a wood post. What was the average force on the bullet in slowing it to a stop?
When a converging lens is used in a camera (as in the first drawing), the film must be placed at a distance of 0.240 m from the lens to record an image of an object that is 3.80 m from the lens. How far from the projector lens should the film be pl..
when a person visits the local tanning salon they absorb photons of ultraviolet light uv to get the desired tan. what
A 63.0 ?F capacitor is connected to a generator operating at a low frequency. at what frequency will the fuse burn out
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