2 years ago

In scientific terms, which situation does NOT represent work done on a rock?

Physics

1 answer:

Assoli18 [71]2 years ago

7 0

ANSWER: D

EXPLAINATION:

All the other answers are alike so this is the only different one

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An airplane is flying through a thundercloud at a height of 2000 m (This is a very dangerous thing to do because of updrafts, tu

Doss [256]

Answer:

$400000\ \text{N/C}$

Explanation:

$q_1$ = Charge at 3000 m = 40 C

$q_2$ = Charge at 1000 m = -40 C

$r_1$ = 3000 m

$r_2$ = 1000 m

k = Coulomb constant = $9\times10^9\ \text{Nm}^2/\text{C}^2$

Electric field due to the charge at 3000 m

$E_1=\dfrac{k|q_1|}{r_1^2}\\\Rightarrow E_1=\dfrac{9\times 10^9\times 40}{3000^2}\\\Rightarrow E_1=40000\ \text{N/C}$

Electric field due to the charge at 1000 m

$E_2=\dfrac{k|q_2|}{r_2^2}\\\Rightarrow E_2=\dfrac{9\times 10^9\times 40}{1000^2}\\\Rightarrow E_2=360000\ \text{N/C}$

Electric field at the aircraft is $E_1+E_2=40000+360000=400000\ \text{N/C}$ .

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3 years ago

Longitudinal waves do not have

soldier1979 [14.2K]

E. Nonsense longitudinal waves have all of these properties

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3 years ago

What percent of the world lumber harvest goes to paper production<br> 10%<br> 20%<br> 25%<br> 50%

sergejj [24]

The answer is 50% of the paper production

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3 years ago

You are given two temperatures for substance: one is the melting point and one is the boiling point. How do you determine which

Sergio039 [100]

melting point is where the substance is melting and turning from a solid to a liquid.

boiling point is where molecules vibrate and produce energy which makes the water hot and becomes a boil.

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3 years ago

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Zigmanuir [339]

Explanation:

Transmission

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Absorption

Refraction

Diffraction

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2 years ago