A person drives 4 miles to the mall. If the speed limit is 45 miles/hr and the person
1 answer:
Answer: Third Option
Yes, the person is going 133 miles/hr.
Explanation:
Remember that the average speed can be calculated as
Where s is the speed
d is the distance traveled
t is the time
In this case
Therefore
Remember that the speed limit is 45 miles/hr
So the answer is the third option "Yes, the person is going 133 miles/hr".
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Answer:
a) y = 2.4 x 10⁻³ m = 0.24 cm
b) y = 3.2 x 10⁻³ m = 0.32 cm
Explanation:
The formula of Young's Double Slit experiment will be used here:
where,
y = distance between dark spots = ?
λ = wavelength
L = distance of screen = 2 m
d = slit width = 4 x 10⁻⁴ m
a) FOR λ = 480 nm = 4.8 x 10⁻⁷ m:
<u>y = 2.4 x 10⁻³ m = 0.24 cm</u>
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a) FOR λ = 640 nm = 6.4 x 10⁻⁷ m:
<u>y = 3.2 x 10⁻³ m = 0.32 cm</u>