Why are objects that fall near Earth’s surface rarely in free fall?

Answers

Answer 1

Answer:

Answer:

The correct answer is because of gravity and air resistance.

Explanation:

When we speak of free fall, we are referring to something that falls "into the void", and which has no force to oppose such a fall.

Due to the gravity and atmosphere of our planet, this situation is not possible. When an object falls close to our surface, it is very difficult to do it in free fall. Gravity is going to pull this object down, which along with air resistance, will cause the object to fall at a constant speed.

Answer 2

Answer: Objects that fall near the Earth's surface are rarely in free fall because the gravity of the Earth is affecting them too much.
Free fall is what most people would call "floating," as an object in free fall has gravity acting upon it enough to hold it in a general distance, but not enough to pull it closer. For example, the moon is in free fall, as the gravity of Earth keeps it close, but isn't strong enough to bring it much closer from where it's at.

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Which best characterizes the Precambrian era?A.

abundant plants and animals

B.

dinosaurs

C.

small, one-celled organisms and primitive jellyfish

D.

extensive mountain building

Answers

the answer is dinosaurs

Answer:

It is C

Explanation:

Because everything's starts out small and they are the smallest in the eras because one cell turns to two cells and etc. it was the beginning of all life forms . It couldn't be dinosaurs because they were in the Mesozoic era. At the time of the Precambrian era i think it was before the Phanerozoic eon

Which factors cause air masses to move in the united states? click all that apply.

Answers

Answer:

prevailing westerlies

jet stream

Answer:

jet stream and prevailing westernlies

Explanation:

HELP PLEASE!!!!!! The bar-tailed godwit is a type of shorebird that makes an annual migration from Alaska to New Zealand and back. The birds make each 11,500-kilometer (7,145-mile) trip by flying over the Pacific Ocean in about nine days, depending on weather, wind speed, and direction of travel. One bird was observed to make the entire journey uninterrupted, a feat that is comparable to a human running a nonstop seven-day marathon at 70 kilometers per hour (43.5 miles per hour). Would you expect the flight (breast) muscles of bar-tailed godwits to use mainly aerobic respiration or fermentation? Explain your answer.

Answers

Answer:

They probably use aerobic respiration.

Explanation:

A travel distance of 11.500 kilometers in 9 days covered by flying surely requires a lot of energy.

If cells are fermenting, the ATP (energy) they generate only comes from glycolysis, which produces 2 ATP molecules.

If they are using aerobic respiration, glucose is completely oxidized to CO₂ through glycolysis and the Citric Acid Cycle, and the electrons enter the electron transport chain to finally reduce oxygen into water. In the complete process, up to 36 ATP molecules are produced.

In sum, aerobic respiration is much more efficient to generate energy than fermentation, so it's probably the main metabolism of the flight muscles in bar-tailed godwits.

The area where rock under stress breaks and triggers an earthquake is called the ___________

Answers

It is called the focus :)

Hello friends,

Into the void: The word focus will come.

Achievements.

The total number of atoms of each element is not changed during a chemical reaction.

Answers

That is definitely true. That's why in chemistry we spent a whole two weeks on balancing chemical equations

According to the theory developed by Charles Darwin, what process causes organisms to develop traits that help them adapt to changes in their environment? A.
homeostasis

B.
artificial selection

C.
succession

D.
natural selection

Answers

The answer is natural selection

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Organelle that packages and transports materials out of the cell?

Can someone please help me with question 1