The frequency of a sound wave is 457
Hz and the speed is 342.5 m/s. What
is the sound's wavel...
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Physics, 21.06.2019 18:00, Tips101
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Physics, 22.06.2019 11:50, azertyqwerty123
Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?
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