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defon
3 years ago
9

Hello boys and girls plz help me with this question ASAP Thank you so much

Physics
1 answer:
Alex17521 [72]3 years ago
6 0

Answer:

Blue

Explanation:

The colors of the rainbow are known by the acronym; ROYGBIV.

This is;

Red, Orange, Yellow, Green, Blue, Indigo, and Violet.

From research, their respective wavelengths on the average are;

Red: 665 nm

Orange; 630 nm

Yellow; 600 nm

Green; 550 nm

Blue; 470 nm

Indigo; from 445nm to 464 nm

Violet; less than 400 nm

This means that from Red to Violet in that order, wavelength is decreasing in a descending order.

Now in refraction, the light with shortest wavelength will be bent the most while that with longest wavelength will be bent the least.

Thus, violet bends the most.

However, violet is not included in the options. So the next one that will bend the most after violet among the options given is Blue.

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Water flows from the bottom of a storage tank at a rate of r(t) = 300 − 6t liters per minute, where 0 ≤ t ≤ 50. Find the amount
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r(t) models the water flow rate, so the total amount of water that has flowed out of the tank can be calculated by integrating r(t) with respect to time t on the interval t = [0, 35]min

∫r(t)dt, t = [0, 35]

= ∫(300-6t)dt, t = [0, 35]

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After your school's team wins the regional championship, students go to the dorm roof and start setting off fireworks rockets. T
oksian1 [2.3K]

Answer:

required distance is 233.35 m

Explanation:

Given the data in the question;

Sound intensity I = 1.62 × 10⁻⁶ W/m²

distance r = 165 m

at what distance from the explosion is the sound intensity half this value?

we know that;

Sound intensity I is proportional to 1/(distance)²

i.e

I ∝ 1/r²

Now, let r² be the distance where sound intensity is half, i.e I₂ = I₁/2

Hence,

I₂/I₁ = r₁²/r₂²

1/2 = (165)²/ r₂²

r₂² = 2 × (165)²

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r₂² = 54450

r₂ = √54450

r₂ = 233.35 m

Therefore, required distance is 233.35 m

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A car moving with a speed of 35 m/s sees a child standing in the
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Answer:

2100 N

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