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Two sinusoidal waves with identical wavelengths and amplitudes travel in opposite directions along a string with a speed of 11 cm/s. If the time interval between instants when the string is flat is 0.40 s, what is the wavelength of the waves?
question1find out a magnitude and direction of the electric field this arrangement of charges produces at point that
A converging lens has a focal length of f = 43 cm for blue light and f = 53 cm for red light. An object is placed 140 cm in front of the lens and is illuminated with white light. How far apart are the two images
A mountain climber gains 897 m in elevation on a particular hike. Consider the climber's body as a heat engine, how much heat does the food supply
A sled weighing 1.0 X 10^2 N is held in place on a frictionless 20.0 degree slope by a rope attached to a stake at the top. The rope is parallel to the slope. What is the normal force of the slope acting on the sled.
An inductor has an inductance of 0.015 H. The voltage across this inductor is 49 V, What is the current in the inductor
What is the maximum mass of ethyl alcohol you could boil with 1000 J of heat, starting from 15 deg C
Halley's comment moves in an elliptical orbit around the sun with eccentricity e=0.967. Its distance from the sun at perihelion is rmin=8.9 x 10^7 km. Calculate the orbital period of Halley's comet
What is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road.
In an amusement park ride called The Roundup, passengers stand inside a 19.0 m -diameter rotating ring. What is the longest rotation period of the wheel that will prevent the riders from falling off at the top
A generating station is producing 2.00 106 W of power that is to be sent to a small town located 8.0 km away. Find the power used to heat the wires if the power is transmitted at 1300 V
For light that originates within a liquid and strikes the liquid/air interface, What is Brewster's angle for this light
Tarzan swings on a 30.0?m?long vine initially inclined at an angle of 370 with the vertical. What is his speed at the bottom of the swings if he starts from rest
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