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A water-skier is moving at a speed of 14.3 m/s. When she skis inthe same direction as a traveling wave, she springs upward every0.838 s because of the wave crests. When she skis in the directionopposite to that in which the wave moves, she springs upward every0.476 s in response to the crests. The speed of the skier isgreater than the speed of the wave. Determine
(a) the speed and
(b) the wavelength of the wave.
A transparent oil with index of refraction 1.22 spills on the surface of water (index of refraction 1.33), determine the thickness of the oil slick
assuming the average person has a mass of 68kg? Do not avoid the weight of the logs. Assume the specific gravity of wood is 0.6.
Calculate the focal length required of glasses to be worn, A pair of eyeglasses are designed to allow a person with a near-point distance of 2.52 m to read a road sign at a distance of 25.2 m.
An ideal monatomic gas expands isothermally from 0.530 m3 to 1.25 m3 at a constant temperature of 670 K. If the initial pressure is 1.20 105 Pa. Find the work done on the gas
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 10 m and, in starting, rotates according to ? = 0.30t2, where t is in seconds and ? is in radians. what is the magnitude of the astronaut's angular velocity?
A 65.0-kg person throws a 0.0410-kg snowball forward with a ground speed of 26.0 m/s. What are the velocities of the two people after the snowball is exchanged
Consider a circuit consisting of a lightbulb and a capacitor. Part A:If the frequency of the generator is increased, does the intensity of the lightbulb increase, decrease, or stay the same? Part B:Choose the bestexplanation from among the following:
A 280g wood block is firmly attached to a very lighthorizontal spring. how far beyond its equilibrium position will it stretch at its firstmaximum extension
q1. the critical angle for a special type of glass in air is 41.8. the index of refraction for water is 1.33. what is
Two identical spools are held at the same heights above the floor. The thread from the spool A is tied to an overhead support while spool B is not connected to the support. which spool will hit the floor first
A vertical wall (5.4 m 2.4 m) in a house faces due east. A uniform electric field has a magnitude of 164 N/C. What is the electric flux through the wall
A parallel-plate air capacitor is made from two plates 0.205m square, spaced 0.830cm apart. It is connected to a 120 V battery. What is the eletric field between the plates
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