Orbital Air
force..orbital speed..distance??
physics anyone??
1. the normal hydrogen atom consists of a proton nucleus and an orbital electron. assume that the electron orbit is circular and that the constant distance between the proton and electron is 5.3 X 10^-11 m. what is the force of attraction between the two fundamental particles?
1) 1.77 X 10^-8 N
2) 3.35 X 10^-8 N
3) 6.18 X 10^-8 N
4) 8.20 X 10^-8 N
2. what is the orbital speed of the orbiting electron?
1) 1.4 X 10^6 m/sec
2) 1.90 X 10^6 m/sec
3) 2.19 X 10^6 m/sec
4) 3.11 X 10^6 m/sec
3. a parallel-plate capacitor with air dialectric has a plate area of 75 cm^2. if the capacitor is fully charged by a 300V source and can hold a charge of 7.5 X 10^-9 C, what is the distance between the plates?
1) 2.7 mm
2) 3.1 mm
3) 5.3 mm
4) 6.9 mm
my answers are 3,2,2…am i correct???
thanks!!!
1. Force between two charges q1 and q2 is 9 * 10^9 * q1 * q2/distance square
Charge of proton = 1.6 * 10^-19 C and
charge on electron = – 1.6 * 10^-19 C
You can calculate the rest.
2. If orbital speed is V, then force = mV^2/R
where m = mass of electron = 9 * 10^-31 kg
R = distance of electron from proton (given in the problem)
You have calculated force in question 1.
So, you can calculate for V.
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Energy Enhancement, The Macrocosmic Orbit, The Antahkarana, + Emerald Tablet Of Hermes Trismegistus
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