The up quark has a charge of 2/3 e, A down quark has a charge of -1/3 e, where e is the elementory charge (1.6 x 10 power of -19c), how many up quarks and down quarks must a proton contains
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6 resisitors of resistance 5 ohm are connected to 2 v cell of negligible internal resistance, what will be the pottential difference between terminals, how to slove this
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Homework Statement
Radio 4 transmits on FM at a frequency of 92.5 MHz Calculate the wavelength and use it to explain why listeners in deep valleys cannot pick up radio 4 FM.
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Homework Statement
Two loud speakers emit sound waves of the same wavelength.When a microphone is moved between them quiet places are observed 20cm apart.What is the wavelength of the sound waves?
Homework Equations
The Attempt at a Solution