If an object is falling downward, is the acceleration due to gravity (9.8 m/s/s) negative?

Answers

Answer 1
Answer: NO! ACCELERATION IS NEVER NEGATIVE UNLESS IT IS SLOWING DOWN.
Answer 2
Answer: No because the acceleration is getting larger. If the object was slowing down it would be negative. It does not matter in direction. Its wether is is speeding up or slowing down.

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3. Explain A friend notices that a nail that was left outside for a few month:seems larger and heavier than it was before. He says the nail is rusting disproves the Law of Conservation of Mass. Explain why he is wrong.
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Explain how drinking through a straw illustrates fluid flowing from high-pressure to low-pressure areas.
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Can someone help me on 2 science question,this is what they say1. A teacher challenges.students to study moon phases to determine if what they have learned from the textbook is accurate. How might a student investigate claims made in a textbook that moo. phases occur in a 28-day cycle?A. observe the phase of the moon each night until a full moon can be seen.B. Compare the textbook phases to the actual moon phases seen in the night sky each night in 28 days periods over a three month time frame.C. Compare diagrams of moon phases from the textbook to diagrams of moon phases on-lineD. Observe the moon phases seen in the night sky as often as possible over a six month period.2. What causes the apperance of the moon change overtime?A. The orbit of the Earth around the Moon and its distance from the sun.B.The Moons position relative to the sun and earth as it revolves around sun.C. the rotation of the moon on its axisD. The distance of the moon to the sunthank you

The lowest point of a wave is its breaker

trough

crest

swell

Answers

trough because the horozontal distance between successive crest

Answer:

it is B

Explanation:

Hope this helps

crest and trough

Kaya collects the data shown in the table. What is the resistance in the circuit? 0.05 1.8 5.7 20

Answers

Kaya collects the data where the voltage is 6 V also the current is 0.3 A then the resistance in the circuit will be 20 ohms. Hence, option D is correct.

What is Electrical energy?

When put in an electromagnetic field, charged matter experiences a force due to the fundamental property of electric charge. Positive or negative electrical ions are possible. When two charges are in opposition to one another, they repel one another.

The term "neutral" refers to an object that has no net charge. The early understanding of the way charged particles interact is now referred to as classical electrodynamics, and it is still true for issues that do not demand taking into account quant phenomena.

As per the given information in the question,

Voltage, V = 6 V

Current, I = 0.3 A

Use the equation of ohm's law,

V = RI

6 V = R(0.3)

R = 6/0.3

R = 20 Ω.

To know more about Electrical Energy:

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Answer:

1.8

Explanation:

When it is cloudy, many of the sun’s rays never reach the Earth. What does this do to the temperature

Answers

Answer:

When it is cloudy, many of the sun’s rays never reach the Earth. It leads to cooler temperatures.

Explanation:

During the day, the sun warms the earth. When the sky is clear, more heat reaches the earth's surface . This leads to warmer temperatures.

However, when the sky is cloudy, a few drops of clouds reflect some of the sun's rays. As a result, less solar energy can reach Earth's surface, causing Earth to heat up more slowly. This leads to cooler temperatures.

If cloudy skies are forecast when forecasting daytime temperatures, expect lower temperatures than you would expect if clear skies were forecast.

Similarly, cloud cover at night has the opposite effect. When the sky is clear, the heat emitted from the earth's surface freely escapes into space, resulting in cooler temperatures.

However, when there are clouds, some of the heat from the earth's surface is captured by the clouds and returned to the earth. As a result, temperatures drop more slowly than when the sky is clear.

A child holds up a silver spoon and is surprised to see her reflection there. Which interaction between light and matter explains this?









A.
When light hits something relatively flat, smooth, and shiny, it is transmitted by the surface, allowing nearby objects to be seen on the surface.







B.
When light hits something relatively flat, smooth, and shiny, it is refracted by the surface, allowing nearby objects to be seen on the surface.







C.
When light hits something relatively flat, smooth, and shiny, it bounces off the surface, allowing reflected objects to be seen on the surface.







D.
When light hits something relatively flat, smooth, and shiny, it is absorbed by the surface, allowing refracted objects to be seen on the surface.

Answers

The answer to your question is B. When light hits something relatively flat, smooth and shiny, it is reflected by the surface, allowing nearby objects to be seen on the surface.
the answer is B.When light hits something relatively flat, smooth, and shiny, it is refracted by the surface, allowing nearby objects to be seen on the surface. 

10. A loud motorcycle passes by the front of Bill's house. What mediumdoes the sound wave travel through to get from the motorcycle to Bill's
ears?
Answers:
•air
•energy
•vacuum
•large vibrations

Answers

Answit would be air because only electromagnetic waves and some others travel thru a vacuum fam

Explanation:

Answer: Air

Explanation:

True or false: distance traveled and displacement can be equal.

Answers

Answer:

true

Explanation:

Answer:

When the object is moving in a straight line distance will be equal to displacement. ... Shortest path = Actual path,because object travelled in a straight line. Displacement and Distance should have same magnitude because the object has not changed its direction.

Explanation: