Electric field lines can never cross. What would crossed electric field lines indicate?
2 answers:
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Answer:
14 N and 2 N
Explanation:
We have two vectors:
a = 8 N
b = 6 N
When the two vectors are in the same direction, their resultant is simply given by the sum of the magnitudes of the two vectors. Therefore, we will have:
Vice-versa, when the two vectors are in opposite directions, we have to consider one of the two vectors as being negative: therefore, the resultant will be given by the difference between the magnitudes of the two vectors. Therefore, in this case, we will have:
Nine
Basically you are using d = r * t
Frequency is 1 / t
d is more commonly represented by lambda (). Lambda is the wavelength.
so the formula = c / f
More commonly it is written as *f = c.
Givens
c = 3*10^8 m/s
= 0.1 nm = 0.1 nm *[1 m /1 * 10^9 nm] = 0.1 * 10^ - 9 meters.
f = ??
f =
f = 3 * 10^8 * 10^9 / 0.1 = 3 * 10^18
Answer: C
Ten
= c/f
= 3*10^8 / 1 * 10^16
= 3*10^-8 meters
= 30 * 10^-9 meters = 30 nm
Answer: D