PLEASE ANSWER

Chemistry

1 answer:

lana [24]3 years ago

3 0

Answer: option D. Their speed in a vacuum

Explanation:

Electromagnetic waves all have same speed in vacuum. This speed has been calculated to be 3x10^8m/s.

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Law of Universal Gravitation (what factors affect gravity and how?)

olya-2409 [2.1K]

Explanation:

Hey there!

According to the law of gravitation, the factors that affects the gravity are:

Mass of the heavenly bodies.
Distance from the centre of the body to next body.

Mass of heavenly bodies:The mass of heavenly bodies affect the gravity. We know that gravity is directly proportional to the mass of heavenly bodies. so, when the mass is more there is more gravity and where there is less mass there is less gravity.

Distance from the centre of the body to next body: It is one of the factor to influence gravity. When there is more distance there is less gravity and where there is distance more force is there. Is means gravity is inversely proportional to the distance between the bodies.

Hope it helps...

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3 years ago

What is NOT a condition needed for a hurricane to form?

yuradex [85]

Answer:

The first condition is that ocean waters must be above 26 degrees Celsius (79 degrees Fahrenheit). Below this threshold temperature, hurricanes will not form or will weaken rapidly once they move over water below this threshold.

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3 years ago

The pressure of a gas increases when the temperature _ at constant volume

weqwewe [10]

When it’s warmer so when temperature encreases

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3 years ago

During photosynthesis, plant leaves take in carbon dioxide through _______ in their leaves. a stomata b xylem c phloem

Iteru [2.4K]

<h3>Answer:</h3>

Stomata

<h3>Explanation:</h3>

Photosynthesis refers to the process that takes place in green plants and some algae.
During the process, water and carbon dioxide are converted to nutrients or organic compounds using energy from sunlight.
The process takes place in the chloroplast on the leaves of green plants.
The water used during photosynthesis comes from the soil and then transported by xylem tissue to the leaves where the process takes place.
Carbon dioxide enters the leaves through the stomata which are the sites for gaseous exchange.
Sunlight is trapped by green pigments on the leaves known as chlorophyll.

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3 years ago

Which statement summarizes the difference between mass and weight?

alexgriva [62]

Answer:

Mass is the amount of matter in an object.

Weight is how much an object weighs.

Hope this helps!

6 0

3 years ago