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Dafna1 [17]
2 years ago
13

Which of the following is not a reason why plants need water? *

Physics
1 answer:
solong [7]2 years ago
5 0

Answer:

C

Explanation:

the plant cools itself down by allowing water to evaporate from their leaves so it doesn't need water to cool down

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Most of the currents identified have a circular shape. This is because as the air and water move between the equator to the pole
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I believe it is true . Somebody correct me if I’m wrong!
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Amy has a mass of 30 kg, and she is riding a skateboard traveling 5 m/s. What is her momentum
soldi70 [24.7K]
We Know, P = m*v
Here, m = 30 Kg
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3 0
3 years ago
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-4.3 light years what is the value of the 3??​
Radda [10]

Answer:

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Andrews [41]

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7 0
3 years ago
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There are Z protons in the nucleus of an atom, where Z is the atomic number of the element. An α particle carries a charge of +2
qaws [65]

Answer:

r = 2.84 \times 10^{-14} m

Explanation:

As per energy conservation we know that the electrostatic potential energy of the charge system is equal to the initial kinetic energy of the alpha particle

So here we can write it as

\frac{1}{2}mv^2 = \frac{k(2e)(ze)}{r}

now we know that

m = 1.67 \times 10^{-27} kg

e = 1.6 \times 10^{-19} C

z = 79

here kinetic energy of the incident alpha particle is given as

KE = 6.4 \times 10^{-13} J

now we have

6.4 \times 10^{-13} = \frac{(9\times 10^9)(1.6 \times 10^{-19})^2(79)}{r}

now we have

r = 2.84 \times 10^{-14} m

7 0
3 years ago
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