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A jig used to size coal contains a screen that reciprocates with a frequency of 600 cpm. The jig weighs 500 Ib and has a fundamental frequency of 400 cpm.
If an absorber weighing 125 Ib is to be installed to eliminate the vibration of the jig frame, determine the absorber spring stiffness.
What will be the resulting two natural frequencies of the system?
(a) A D5/2 term in the optical spectrum of 39 19K has a hyperfine structure with four components. Find the spin of the nucleus. (b) In (a) what interval ratios in the hyperfine quadruplet are expected?
Design a circuit to provide 60 W at 50 V to a resistive lamp from an AC supply of 120 V ± 10% at 60 Hz. The circuit should be energy efficient-that is, it should consume the least power possible.
Derive an expression for the shift in lambda in the peak wavelength of the planck function for a black body temperature T, corresponding to a small shift in temperature.
A bimetallic strip (68cm by 1cm by 0.01cm) has aluminum (alpha = 23 x 10^-6 1/C) on one side has steel (alpha = 12 x 10^-6 1/C) on the other. What change in temperature is required to change the strip into a full circle
sample of an ideal gas is taken through the cyclic process abca at point a, T = 385 K. How many moles of gas are in the sample, What is the net energy added to the gas during the cycle
Would you expect the fragment to generate an electric fiend in this situation? Explain why or why not?
Determine the linear (tangential) acceleration of the rim of the bicycle's wheels (in the reference frame of a cyclist riding the bike).
question a heat engine utilizes a heat source at 580 degrees celsius and has an ideal carnot efficiency of 28 to
A 7.6 cm diameter horizontal pipe gradually narrows to 4.8 cm . When water flows through this pipe at a certain rate, What is the largest size vehicle
A proton is accelerated from rest through a potential difference of 25800 V. The mass of a proton is 1.673 x 1027 kg and the elemental charge is 1.602 x 10-19 C. What is the speed of the proton
consider a carousel 32 feet in diameter. this carousel takes 11 s to accelerate from rest to its operating speed of
A block of mass m=1.8 kg slides along the inside of a hemispherical bowl of radius r=0.8 m. find the normal force on the block by the bowl
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