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Pachacha [2.7K]
3 years ago
6

Which statement explains why a red rose does not appear to be orange?

Physics
1 answer:
navik [9.2K]3 years ago
7 0

Answer:

A

Explanation:

you see red because it's reflected and other colors are absorbed, light transmitted through something is when it travels through something like glass or a gem

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A student made the claim that a 4 gram paintball fired from a paintball gun at 90 m/s could have about the same kinetic energy a
Fiesta28 [93]

Answer:

I do agree with the student. Because imagene you have a tissue and a stick. And you throw them at the same speed , the stick will go farther because it' s heavier but the tissue would just blow around and not go forward because it is not heavy enought.

Explanation:

Hope this is correct have a terrific day.

5 0
3 years ago
Championship swimmers take about 22 s and about 30 arm strokes to move through the water in a 50 m freestyle race.The swimmer's
Tasya [4]

Answer:

4400 Joules

73.33 Joules

25.9325 Joules

Explanation:

P = Power = 800 W

t = Time = 22 s

F = Force

r = Radius of arm = 90 cm

Energy

E=P\times t\\\Rightarrow E=800\times 22\\\Rightarrow E=17600\ J

As the efficiency is 25%

E=0.25\times 17600\\\Rightarrow E=4400\ J

Energy used in the race is 4400 Joules

Half of the energy is used in the arm

E=\frac{4400}{2}=2200\ J

So, per stroke of paddle

E=\frac{2200}{30}=73.33\ J

The energy expenditure per arm stroke is 73.33 Joules

Displacement will be the half of the perimeter of the circle

s=\frac{1}{2}\times 2\pi r\\\Rightarrow s=\frac{1}{2}\times 2\pi 0.9\\\Rightarrow s=2.82743

Work done

W=F\times s\\\Rightarrow F=\frac{W}{s}\\\Rightarrow F=\frac{73.33}{2.82743}\\\Rightarrow W=25.9352\ J

The average force of the hand on the water is 25.9325 Joules

3 0
3 years ago
Studying climate on other planets is important to understanding climate on earth because
zhenek [66]

Answer:

yes it is important.

Explanation:

It is important to study the climate of other planet to understand the climate of the earth because it is useful to know which things are harmful for our earth and which are important for our earth climate comparing with the other planets.

6 0
3 years ago
Select all of the ways collection areas use to gain water.
Vedmedyk [2.9K]

Answer:

runoff from precipitation

precipitation falls direction into the collection area

Explanation:

i took the test

4 0
3 years ago
On top of a 3 m tall shelf sits a lonely 4.5 kg toy snake. How much GPE does this snake have if the shelf is on Earth? (g = 9.8
koban [17]

Answer:

hi

Explanation:

how r u

8 0
2 years ago
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