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An electron (mass m = 9.11 ? 10-31 kg) is accelerated in the uniform field E (E = 1.70? 104 N/C) between two parallel charged plates. The separation of the plates is 1.10 cm. The electron is accelerated from rest near the negative plate and passes through a tiny hole in the positive plate.
(a) With what speed does it leave the hole? m/s
Consider an Ising model of just two elementary dipoles, whose mutual interaction energy is ±ε. Enumerate the states of this system and write down their Boltzmann factors. Calculate the partition function. Find the probabilities finding of the dipo..
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You sing into a well and find that the well resonates at frequencies of 231 Hz and 273 Hz with no resonances between these two frequencies. What is the frequency of the fundamental mode
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q1. an archer puts a 0.30 kg arrow to the bowstring. an average force of 201 n is exerted to draw the string back 1.3
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