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The four wires that lie at the corners of a square of side a= 4.00 cm are carrying equal currents i= 2.30 A into (+) or out of (-) the page, as shown in the picture.
https://d2vlcm61l7u1fs.cloudfront.net/media%2F836%2F836590ca-bff6-4058-997a-d1c4ee72a64d%2FphpzIx0g4.png
Calculate the y component of the magnetic field at the center of the square.
Calculate the x-component of the force on a 1.0-cm long piece of the lower right-hand wire, due to the other three wires.
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. What is the period of a satellite in a geosynchronous orbit
The end point of a spring vibrates with a period of 1.9 seconds when a mass m is attached to it. When this mass is increased by 9.630×101 kg, the period is found to be 4.1 seconds. Find the value of m.
A person is exercising on an elliptical trainer at a steady VO2 of 3.92 l/min. Find what is this person mechanical power output
A light spring has an unstretched length of 35.0 cm. If one end is attached to the top of a door frame and a 7.50 kg weight is hung from the other end, the length of the spring is 41.5 cm. What is its spring constant?
A hydrogen atom is in the inital state ni = n, where n > 1. Find the frequency of the electron's orbital motion
n = 2.90 mol of Hydrogen gas is initially at T = 370 K temperature and pi = 2.27×105 Pa pressure. What would be the temperature of the gas, if the gas was allowed to adiabatically expand back to its original pressure
A stone is thrown vertically upward with a speed of 20.0m/s. how fast is it moving when it reaches aheight of 10.0m? how long is required to reach height ? why are there two answeres to (b) ?
describe the change in flux through and the induced current in a loop of wire rotated in a uniform magnetic field
A 451-? resistor and a 257-mH inductor are connected in series with an ac generator with an rms voltage of 20.0 V and a frequency of 60.0 Hz
A proton (mass m = 1.67 x 10-27 kg) is being accelerated along a straight line at 5.3 x 1011 m/s2 in a machine. If the proton has an initial speed of 7.5 x 105 m/s and travels 2.5 cm, what then is (a) its speed and (b) the increase in its kinetic ene..
Three pendulums with strings of the same length and bobs of the same mass are pulled out to angles q1, q2 and q3 correspondingly and released. The approximation sin q = q holds for all three angles, with q3 > q2 > q1. How do angular frequencies of th..
A 662 KeV photon from 137Cs is compton scattered at an angle 60, calculate the energy of the scattered photon
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