Answer:
The electron began in the quantum level of 4
Explanation:
Using the formula of wave number:
Wave Number = 1/λ = Rh(1/n1² - 1/n2²)
where,
Rh = Rhydberg's Constant = 1.09677 x 10^7 /m
λ = wavelength of light emitted = 486.4 nm = 486.4 x 10^-9 m
n1 = final shell = 2
n2 = initial shell = ?
Therefore,
1/486.4 x 10^-9 m = (1.09677 x 10^7 /m)(1/2² - 1/n2²)
1/4 - 1/(486.4 x 10^-9 m)(1.09677 x 10^7 /m) = 1/n2²
1/n2² = 0.06082
n2² = 16.44
<u>n2 = 4</u>
Answer: this answer is D. That's what I think it is
Explanation:
Answer:
The mean is 4.5 and the standard deviation is 1.44. Step-by-step explanation: An uniform probability is a case of probability in which each outcome is equally as likely. For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b. The mean of the uniform probability distribution is: The standard deviation of the uniform probability distribution is: Uniformly distributed random variable ranging from 2 to 7. This means that . So The mean is 4.5 and the standard deviation is 1.44.
Answer:
10. True. vA = - ¼ vB
, pA = - pB
Explanation:
Let us propose the solution of this problem, as the cars are released let us use the conservation of the moment.
Initial before releasing the cars
p₀ = 0
Final after releasing cars
= mA vA + mB vB
p₀ =
0 = mA vA + mB vB
vA = - mB / mA vB
They indicate that mA = 4 mB
vA = - ¼ vB
Let's write the amount of movement for each body
pA = mA vA = 4 mB (- ¼ vB
pA = -mB vB
pB = mB vB
pA = - pB
Let's check the answers
1 False
2 False
3 False
4 false
5 False
6 False
7 False
8 False
9 False
10. True. The speed and amount of movement values are correct
