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How does a capacitor work and how do I treat it in a circuit?

for a capacitor the equations you need to know are: Q=CV V=Vin*e^(t/RC) and E=1/2QV (with Q=charge/columbs, C= capacitance/Farads, V=voltage/volts, R=resitance/ohms, Vin=initial voltage when discharging/volt...
TM
Answered by Tom M. • Physics tutor
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A golf ball is hit from horizontal ground with speed 10 m/s at an angle of p degrees above the horizontal. The greatest height the golf ball reached above ground level is 1.22m. Model the golf ball as a particle and ignore air resistance. Find p.

Initial horizontal speed of particle = 10cos(p) m/s. Initial vertical speed of particle = 10sin(p) m/s. ('U' in suvat.) There are no forces other than gravity acting on the particle so the vertical accelerat...
SR
5307 Views

What is the decimal equivalent of the following sequence of bits, which represents an unsigned binary integer: 1101001. What is the decimal equivalent if the sequence in bits encodes a two’s complement binary integer.

1101001 Unsigned binary number means every bit represents a power of two. The sum of the powers present in the binary representation gives the number in decimal. We start from right to left: 1 2 0 +0 2 1 +0 ...
AP
3078 Views

Explain how abiotic factors may have allowed the development of high biodiversity in tropical rainforests

Tropical rainforests are located around the equator, where there are high temperatures and light levels which increase the rate of plant growth, in turn increasing competition and specialisation. There is a ...
SH
3651 Views

With log base 4, solve log(2x+3) + log(2x+15) = 1 + log(14x+5)

How might one simplify this? It looks as though raising both sides to the power 4 is the way to go, but it is not immediately obvious how to do this. In order to get both sides into the form 'log of somethin...
SJ
Answered by Sam J. • Maths tutor
4277 Views