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Electron spin resonance is much like nuclear magnetic resonance except that electronic transitions are excited between atomic Zeeman levels. These experiments are done at microwave frequencies. If the electromagnetic wave has a frequency of 32 KMHz (K band) calculate the fractional difference in population between two atomic Zeeman levels
(a) at room temperature and
(b) at 4°K.
margaret walks to the store using the following path .500 miles west .200 miles north .300 miles east. what is her
(a) A person's blood pressure is measured to be 112 ± 5 mm Hg. What is its percent uncertainty? (Note that percent uncertainties should be reported to two significant figures.) WebAssign will check your answer for the correct number of significant..
an astronaut swings a pendulum on the moon, which has a length of 1 m and oscillation period of 4.916 seconds. by what factor is the earth's gravity stronger
A remote-controlled car's wheel accelerates at 22.1rad/s2. if the wheel begins with an angular speed of 10rad/s, what is the wheel's angular speed after exactly eleven fullturns?
An 80.0-kg man jumps from a height of 2.50 m onto a platform mounted on springs, What is the man's speed at the instant he depresses the platform 0.120 m
As a function of time t, force component Fx that acts on a 3.00 kg ice block that can move only along the x axis. At t=0, the block is moving in positive direction of the axis, with a speed of 3.0 m/s. what are its (a) speed and (b) direction of trav..
A battery delivers 2.54A to a resistor rated at 4.60? . When it is connected to a 2.15? resistor, it delivers 4.98A. Determine the battery's terminal voltage
With good tires and brakes, a car traveling on dry pavement can travel 400 ft when the driver reacts to something he sees and brings the vehicle to a stop. If this is done uniformly, what is the car’s acceleration?
two masses are joined together by a massless rod of length 0.8 m. What is the rotational kinetic energy of the system
a circular coil consisting of a single loop of wire has a radius of 34.1 cm and carries a current of 27.6 a. it is
Three equal positive point charges of magnitude Q = 6.00? C are located at three corners of a square of edge length d = 2.6 cm, What is the magnitude of the attractive force
Vector addition of: 1.47 N @ 30 degrees, 1.47 N @ 120 degrees, and 1.47 N @ 180 degrees. Show work on how to find the resultant vector and angle of resultant vector
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