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Two strings are adjusted to vibrate at exactly 260 Hz. Then the tension in one string is increased slightly. Afterward, three beats per second are heard when the strings vibrate at the same time. What is the new frequency of the string that was tightened?
An unpolarized laser has an average power of .6 mW. At a distance of 10 m it forms a circle with a diameter of 2 mm. Intensity = 5.23 x 10^-4. Erms= .444 v/m. what is the speed of light in the polarizer
The amplitude of an oscillator decreases to 63.1 percent of its initial value in 25.5 second. Find what is the value of the time constant
A 5.2E-6C charge is positioned at x=-0.70, y=0.0 A second charge of -1.5E-6C is positioned at x=+0.30, y=0.0. What is the direction and magnitude of the electric field at the point x=0.0,y=1.0(all distances in meters)
A system consists of 2.0kg of water at 75 degrees Celsius. 25 J of work is done on the system by stirring with a paddle wheel, What is the change in internal energy of the system
Show that the orthogonal transformation preserves the dot product i.e Au dot Av = u dot v. Hence or otherwise show that the angles between 2 vectors are preserved under the orthogonal transformation.
A double-slit interference pattern has a fringe (a “fringe” is an interference maximum) spacing of 4.0 mm. How far from the central maximum is the first position at which the intensity is equal to I1, the intensity due to each individual slit? In thi..
Upon entering material Xm light slows down by 30% compared to its speed in vacuum. Find the index of refraction of Material X
How many kilograms of water at 100 degrees Celsius can be converted to steam by the addition of 1.13X10^7 joules of thermal energy.
A 50-kg satellite circles the earth in an orbit with a period of 120 min. What minimum energy is required to change the orbit to another circular orbit with a period of 180 min?
a jogger runs with a speed of 3.25 m s i. a direction. of 30.0 degrees above the x axisa. find the x and y components.
You inflate the front tires on your car to 29 psi. Later, you measure your blood pressure, obtaining a reading of 138/84, the readings being in mm Hg. In metric countries (which is to say, most of the world), these pressures are customarily reported ..
Bicyclists in the Tour de France reach speeds of 25.0 miles per hour (mi/h) on flat sections of the road. What is this speed in meters per second (m/s)?
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