Part A How much voltage must be used to accelerate a proton (radius 1.2 ×10−15m) so that it has sufficient energy to just penetrate a silicon nucleus? A silicon nucleus has a charge of +14e, and its radius is about 3.6 ×10−15m. Assume the potential is that for point charges.
Answers
Answer:
Step-by-step explanation:
Qp = charge on proton = 1.6 x 10-19 C
Qs = charge on silicon = 14 x 1.6 x 10-19 C
rf = final distance from nucleus = ∞
ri = initial distance from nucleus = (3.6 x 10-15 + 1.2 x 10-15 ) = 4.8 x 10-15 m
initial Potential energy is given as
Ui = k Qp Qs / ri = (9 x 109) (1.6 x 10-19 ) (14 x 1.6 x 10-19 ) / (4.8 x 10-15 ) = 6.72 x 10-13 J
final Potential energy is given as
Uf = k Qp Qs / rf = (9 x 109) (1.6 x 10-19 ) (14 x 1.6 x 10-19 ) / (∞) = 0 J
Change in Potential energy = ΔU = Ui - Uf = 6.72 x 10-13 - 0 = 6.72 x 10-13 J
Let the Voltage through which proton is accelerated = V
Energy gained due to potential difference = Qp V
Using conservation of energy
Qp V = 6.72 x 10-13
(1.6 x 10-19 ) V = 6.72 x 10-13
V = 4.2 x 106 volts
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What should be done to both sides of the equation in order to solve y + 8.5 = 17.2?Add 8.5. Subtract 17.2. O Add 17.2. Subtract 8.5.
Solve the right triangle ABC, with C = 90.00◦ , a = 15.21 cm, b = 17.34 cm. Round to two decimal places.
Y=6cosx^2 (derivative)
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Answer:
y = 1/2x − 2
Answers
Answer:
3.2
Step-by-step explanation:
0.8 * 100 = 80
Solution: 80%
Answers
The probability will be "0.7497".
Given:
Mean,
- 9
Standard deviation,
- 0.6
Number of babies,
- 4
The standard error of sample will be:
→
hence,
→ P(4 babies will be between 8.4 - 9.6 pounds)
Thus the above response is right.
Learn more:
Complete question:
Some sources report that the weights of full-term newborn babies in a certain town have a mean of 9 pounds and a standard deviation of 0.6 pounds and are normally distributed.
Answer: 0.7497
Step-by-step explanation:
Mean = 9
sd = 0.6
n = 4
P(4 babies will be between 8.4 and 9.6 pounds)
P(8.4 ≤ X ≤ 9.6)
Standard error of the sample (S. E) :
S. E = sd/√n
= 0.6 /√4
= 0.6/2
= 0.3
P(8.4 ≤ X ≤ 9.6)= ((P(8.4 - 9) / 0.3) ≤ X ≤ (9.6 - 9)/0.3)
P(8.4 ≤ X ≤ 9.6) = P(-2 ≤ X ≤ 2)
P(Z ≤ 2) - P(Z < - 2)
0.9772 - 0.2275 = 0.7497
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Answer:
see the analysis below
Step-by-step explanation:
Solve pls
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Hey there!
ANSWER: 
EXPLANATION:
To solve this inequality, we will need to subtract 0.08p from both sides of the inequality.
Now we have to add both sides by 5.
In our last step, we will have to divide both sides by 0.32.
Hope this helps!
Answer:
p=25
Step-by-step explanation:
Look at the answer above.
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Answer:
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