if an astronaut moved away from Earth in the direction of the moon, how would the gravitational force between Earth and the astronaut change?Explain

Answers

Answer 1

Answer:

As the astronaut moved away from Earth, the gravitational force between Earth and the astronaut will decrease.

What is the gravitational force?

The gravitational force can be described as a force that attracts any two objects having mass. The gravitational force is an attractive force because it always tries to pull masses together, it never pushes objects apart.

In the universe, each object with mass attracts every other object with a certain force, and that attraction force is directly proportional to the product of the masses of those objects.

The objects that are far apart from each other, don't pull on each other but the force is there and we can calculate it from the Gravitational Force Formula,

F = Gm₁m₂/r²

Where F is the gravitational force between two objects, m₁ is the mass of the first object, m₂ is the mass of the second object and 'r' is the distance between the centers of two objects.

The earth pulls everything towards itself because of the gravitational force. As the astronaut moved away from the earth the influence gravitational force of the earth or gravity will decrease.

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Answer 2

Answer: The gravitational force would change because once the astronaut moves away from the Earth, the gravitational force gets weaker.

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Are diamonds shiny or dull?

Also can you give me an example of dull?

Answers

Diamonds are shiny. Dull is low in luster,

Diamonds are shiny. An example of something that is dull would be a metal that does not have a shiny value to it (reflects light very well). One example would be concrete.

Sort the sentences based on whether the attributes they describe belong to planets or an object that isn't a planet.The object orbits the
The object is a satellite
Sun
The regions surrounding
the object are free from
debris
The object is triangular
in shape.
Planet
Not a Planet
2019 Edmentum All rights

Answers

Answer:

Planet: The object orbits the sun

Not planet: The object is a satellite

Planet: The regions surrounding the object are free from debris

Not Planet: The object is triangular in shape.

Explanation:

A planet is characterized as:

Spheroidal (or at least big enough to be round-ish)

It should orbit the sun (not other planets, so satellites like the moon is not considered as a planet)

It should have no debris, or cleared of debris around its orbit

Although there is now the dwarf planet category, it satisfies almost all charateristics to be considered a planet, except the cleared of debris part.

Answer:

Planet: The object orbits the sun

Not planet: The object is a satellite

Planet: The regions surrounding the object are free from debris

Not Planet: The object is triangular in shape.

after a fire, the ashes have less mass and take up less space than the trees and vegataion before the fire. how can this be explained in terms of the Law of Conservation of mass?

Answers

Fire expends ENERGY which is a by-product of conversion of matter.

The calories or therms of a fire equal a certain amount of mass.

When MATTER (Electron) and ANTI-MATTER (Positron) collide they don't inhillate each other with nothingness, they always realse TWO gamma particles.

The ENERGY of the TWO gamma particles CONSERVES the MASS of the ELECTRON and The POSITRON

This is what Einstein meant by E=mc2

ENERGY has physical properties than can be measured.

These properties equal the mass that no longer exists after you measure the mass BEFORE and AFTER

The AFTER MASS + the ENERGY MUST equal the BEFORE MASS to at least 99.999%

You must take heat, light and other PARTICLES into consideration.

Their MASS plus their ENERGY

Answer:

this can be explained in terms of the Law of Conservation of mass because you just have to multiply the number of amount that was lost during the fire by 5

Explanation:

so if they lost 489 miles of mass from the fire, then u will have to multiply 489 by 5. 489x5=2445

What is the Environmental Protection Agency?

Answers

Born in the wake of elevated concern about environmental pollution, EPA was established on December 2, 1970 to consolidate in one agency a variety of federal research, monitoring, standard-setting and enforcement activities to ensure environmental protection. Since its inception, EPA has been working for a cleaner, healthier environment for the American people.

It is an agency that helps the enviornment, or if there is a problem in a place, they help to make it go back to what it is originally is suppose to be

What is being done to reduce the levels of acid rain?

Answers

EPA’s Acid Rain Program

What happens when a pure substance undergoes a chemical change

Answers

When a pure substance undergoes chemical change, the pure substance changes in chemical composition.

What is a chemical change?

Chemical change is any change that involves the formation of new substances or products and it is not easily reversible.

A pure substance is any substance that has a definite chemical composition.

However, when a pure substance undergoes chemical change, the chemical composition of the substance is changed to form new products.

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The substance changes completely. It undergoes a chemical reaction.

Example is when you bake a cake. You cannot bring it bake to dough.

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