4 years ago

Select the statement that correctly describes how light travels?

Physics

1 answer:

g100num [7]4 years ago

8 0

A is the right answer

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Which situation is NOT the result of an unbalanced force acting on an object? A. an object speeds up B. an object maintains spee

7nadin3 [17]

Im pretty sure its b........

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3 years ago

Which way does heat travel? Explain your answer.

Archy [21]

Answer:up

Explanation:The partials are lighter

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3 years ago

A paper clip that has a mass of 1.5 grams is thrown into the air and initially has a kinetic energy

Vsevolod [243]

Answer:

$v = 4.2 \ m/s$

Explanation:

Given data:

Mass of the paper clip, $m = 1.5 \ g = 0.0015 \ kg$

Kinetic energy, $K = 0.013 \ \rm J$

Let the velocity of the paper clip when it is thrown be <em>v</em>.

Thus,

$K = \frac{1}{2}mv^{2}$

$0.013 = 0.5 \times 0.0015 \times v^{2}$

$\Rightarrow \ v = 4.16 \ m/s$

$v = 4.2 \ m/s.$ (rounding to nearest tenth)

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3 years ago

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irinina [24]

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2 years ago

Do Earth's continents gain or lose water, considering evaporation and precipitation together? How much ? Plz help :)) Thx

ratelena [41]

Answer:

<em>The amount of water in circulation is the same</em>

Explanation:

The water cycle is the pathway in which water moves from the atmosphere to the earth and back to atmosphere ones again.

During the sunny period, the temperature of the earth is heated up, water evaporates to the atmosphere as water vapour. The water vapour gathers as cloud and comes back to the earth as rain, which enters our rivers and stream. Thereby maintaining a continuous cycle.

With the water cycle, the movement of water via precipitation and evaporation is the same on earth.

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4 years ago