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1. Would you expect phosphorus to exhibit an NMR spectrum? Why or why not2. When radio-frequency energy is absorbed by a nucleus with a spin of 1/2 that is in a magnetic field, what happens3. How does the irradiation of nuclei in FT-NMR instruments differ from irradiation in other types of NMR instruments? What are the advantages of FT-NMR over the other NMR techniques4. In many respects, the spectrum of CH3CH2I (iodoethane) appears to be identical to that of ethanol. What are the differences in the two spectra and why do these differences arise.
An electron is moving in a concentric circular orbit inside a solenoid of radius 4.89 cm, in such a manner that it grazes the inside surface of the coil at all the points of its orbit. What electric current is passing through the solenoid
You take a set of measurements for the wavelengths and frequencies of standing waves on a string that is under a tension of 1.96 N. What is the linear mass density of the string
In an amusement park ride, cars are suspended from L = 4.20 m cables attached to rotating arms at a distance of D = 6.06 m from the axis of rotation. What is the angular speed of rotation
A 0.17 kilogram baseball is launched from the roof of a building15 meter above the ground. Find the speed of the ball as it strikes the ground
Two identical conducting small spheres are placed with their centers 0.330 m apart. One is given a charge of 12.0 nC and the other a charge of 13.0 nC. Find the electric force exerted by one sphere on the other
A vector is 20.9 m long and makes an angle of 58.2° counterclockwise from the y-axis (on the side of the -x-axis). What is the x-component of this vector
A small, 300 g cart is moving at 1.60 m/s on an air track when it collides with a larger, 1.00 kg cart at rest. After the collision, the small cart recoils at 0.890 m/s.
A large refracting telescope has an objective lens with focal length 0.85 m. What is the new angular magnification
An aluminum rod of length l has a resistance of .8 ohms. Half of the rod is machined down so that half of the rod now has half of the radius of the original radius. What will be the new resistance
A new material is found to be superconducting below 94 K. How much resistance will a 93 mm long sample of this material have if it is at a temperature of 84.6 K while linked to a4.5 V DC-power supply?
A certain heat engine does 10.2 kJ of work and 9.5 kJ of heat is transfered to the environment in a cyclical process. What was the heat transfer into this engine
Three boxes move on a frictionless surface by the 120N horizontal force acting on the first box which weighs 20kg. The second box weighs 10kg and the 3rd box weighs 5kg. What is the acceleration of the system? What is the tension among the first box ..
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