PHYSICS MIDDLE SCHOOL

What is meant by gravitational field strength at a point in the gravitational field​

Answers

Answer 1
Answer:

Answer:

Explanation:

The gravitational field strength at a point is the gravitational force exerted per unit mass placed at that point. This means that the gravitational field strength, g {\displaystyle g} is equal to the force experienced by a mass of 1 kg in that gravitational field.

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What would happen if a rocket ran out of fuel in the Earth's atmosphere?

Answers

It would do exactly what a rock or a frisbee does when you toss it.

After the engines cut off, it couldn't get any more energy from
anywhere, and after that, as it pushed air aside to get through,
and had air molecules scraping against it, those would slowly
rob kinetic energy from it.  Sooner or later it would run out of
kinetic energy, start falling, and it would eventually make either
a big 'SPLOOSH' or else a big 'CRUNCH', depending on exactly
where it returned to Earth's surface.
The rocket would fall back down to the surface of earth because there would be nothing propelling it upwards.

Explain how plants and algae use sunlight. how is this process important to other living things in an ecosystem ?

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Plants and algae use sunlight to make food. They do this with the process of photosynthesis, and they create excess oxygen as a waste product. The oxygen is vital for other living organisms to survive and perform their daily functions. Hope this helps :)

How a charge and ions are connected

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The two terms are connected because in a chemistry view ions can have a charge added to them. Such as the element of Iodine.
Ions have a positive charge.

When birds remain airborne and moving without flapping their wings, on what are they gliding?

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The birds can glide in the air without moving their wings by maintaining the thrust of the air by their weight and move downward at a very slower rate.

Further Explanation:

The birds have a capability of flying high in the air without flapping their wings and still not falling down rather they glide downwards due to the up thrust of the air. This technique of the birds to keep them in the air without flapping their wings is termed as soaring.

The soaring birds make use of the air current and its thrust on their primary wings so that there is no turbulence experienced by them due to the pointed tips of their primary wings.

The birds should possess some mass in order to maintain a balance between the thrust and the weight of their body. That’s why the small birds are not able to maintain their flight but the bigger birds like vulture, eagle etc. experience sufficient air drag in order tio maintain their flight.

Thus, the birds can glide in the air without moving their wings by maintaining the thrust of the air by their weight and move downward at a very slower rate.

Learn More:

1. What type of mirror do dentist use brainly.com/question/997618

2. Which of the following is not a component of a lever brainly.com/question/1073452

3. Forces of attraction limit the motion of particles most in brainly.com/question/947434

Answer Details:

Grade: High School

Subject: Physics

Chapter: Up thrust

Keywords:  Airborne, flapping wings, birds, soaring, vultures, weight, maintain flight, gliding, move downward, turbulence, primary wings.

They're riding on thermals, these are rising columns of air caused by the uneven heating of Earth's surface from solar radiation.

Hope this helped!

Which movement causes day and night on Earth?rotation of Earth
revolution of Earth around the Sun
Earth’s elliptical orbit in space
moon’s orbit around Earth

Answers

The movement causes day and night on Earth is the rotation of Earth.

What is rotation?

The rotation is the spinning around of an object about its own axis passing through the center.

When the Earth rotates about its own axis, the rotation completes in 24 hours. This causes the day to night and night to day. When the part of Earth is in front of Sun, there is day. But, when the same part of Earth goes away from the Sun, the sunset occurs and then eventually night occurs.

Thus, the movement causes day and night on Earth is the rotation of Earth.

Learn more about rotation.

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The movement that causes day and night on Earth is the rotation of the earth on its axis, which is in option a as the earth rotates from west to east, completing one full rotation in approximately 24 hours.

As the Earth rotates, the side facing the sun experiences daylight, while the opposite side facing away from the sun experiences nighttime. This rotation creates the cycle of day and night that we observe on Earth. The other movements mentioned, such as the revolution of Earth around the Sun, Earth's elliptical orbit in space, and the moon's orbit around Earth, are not directly responsible for causing day and night.

Learn more about the earth's rotation here.

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which is the correct order of processes that occur for water to move from a lake to a cloud and then turn into rain

Answers

I think this process is called The Water Cycle.

First, the water from the lake is heated from the heat of the sun. Then as the water gets heated, it evaporates in the form of water vapor towards the sky. (Because hot air is lighter and goes up). Now, as the water vapor goes above....it gathers up in the form of cloud. And as the climate gets cooler and cooler ......the water vapor then starts to condense and drop down to the earth in the form of rain. The rainwater gets accumulated into the water sources by various means and the whole process goes again and again.

Fun Fact:
Rain water is the purest form of water if not mixed with the dust and pollution in our surrounding.

Also.....i attached a picture.....feel fee to look at it
This process is The Water Cycle

Evaporation is process in which the sun heats the water and this heating causes the water to rise up through the clouds.

Condensation is the process of combination among water and particles of the earths atmosphere

Precipitation is when the water precipitate because the clouds can not resist to much mass of water and if it snow falls is because temperature is peaked at above freezing causing the water to freeze and that is how snow is converted
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