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zhannawk [14.2K]
3 years ago
6

Green plants need light in order to survive. Structures in the leaves absorb light, which in turn, helps plants make their own f

ood. Under which color of light will plants be least likely to make food?
A. red
B. blue
C. orange
D. green
Physics
2 answers:
Alexus [3.1K]3 years ago
5 0

Correct answer: D). Green

Under the green color of a light plant will be least like to make food, as the plant themselves contains a green color pigment in their leaves called as chlorophyll.

It absorbs the red and blue color light and reflects back the green colored light back. This the reason why plants appear green to us.

The different color of light help plant to achieve a different goal, for example, red light combined with blue light and allow the plant to flower.




Goryan [66]3 years ago
3 0
The answer is green.
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The velocity of a moving body increases from 10m/s to 15 m/s in 5 sec . calculate its acceleration ​
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Answer:

v=u+at

15=10+a x 5

15-10= 5a

5= 5a

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4 0
3 years ago
A life preserver is thrown from an helicopter straight down to a person in distress. The initial velocity of the life preserver
Leno4ka [110]

Answer:29.627 m

Explanation:

Given

Initial velocity of life preserver(u) is 1.6 m/s

it takes 2.3 s to reach the water

using equation of motion

v=u+at

v=1.6+9.81\times 2.3

v=24.163 m/s

Let s be the height of life preserver

v^2-u^2=2gs

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s=\frac{581.29}{2\times 9.81}

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6 0
3 years ago
A sample of helium has a volume of 12.7 m3. The temperature is raised to 323 K at which time the gas occupies 32.5 m3? Assume pr
jasenka [17]

Answer: The original temperature was

T_{1}=126.51K

Explanation:

Let's put the information in mathematical form:

V_{1}=12.7m^{3}

T_{1}=?

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T_{2}=323K

P_{1}=P_{2}=3atm

If we consider the helium as an ideal gas, we can use the Ideal Gas Law:

PV=nRT

were <em>R</em> is the gas constant. And <em>n</em> is the number of moles (which we don't know yet)

From this, taking R=0.08205746\frac{atm.l}{mol.K},  we have:

n=\frac{P_{2}V_{2}}{RT_{2}}

⇒n=3.67mol

Now:

T_{1}=\frac{P_{1}V_{1}}{nR}

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7 0
3 years ago
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A car accelerates from 10m/s to 20m/s over a distance of 80m. What is its acceleration?
Lina20 [59]

Answer:

0.125m/s^2

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5 0
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In this experiment you will investigate which of the following properties of Faraday's law of electromagnetic induction? (Select
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Answer:

Answered

Explanation:

Part A

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By the above equation the correct options are 1,2 and 4

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Large signals of  frequency of 60Hz are measured by osciloscope.

Hence the correct option is part 1.

3 0
3 years ago
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