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FrozenT [24]
3 years ago
12

A pure substance that cannot be broken down into any other substances by chemical or physical means is a (n)

Physics
2 answers:
Leviafan [203]3 years ago
6 0
I think it is referred to as an element                                    


dem82 [27]3 years ago
4 0
It means it is an element.
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How does the force of gravity exerted
givi [52]

The two forces of gravity are equal

Explanation:

We can answer this question by applying Newton's third law of motion, which states that:

"When an object A exerts a force (called action) on an object B, then object B exerts an equal and opposite force (called reaction) on object A"

In this problem, we can identify the Sun as object A and the Earth as object B. This means that the force of gravity exerted by the Sun on the Earth is the action, while the force of gravity exerted by the Earth on the Sun is the reaction: according to Newton's third law, these two forces are equal and opposite.

Therefore, the two forces of gravity are equal in magnitude, which is given by:

F=\frac{GMm}{r^2}

where

G is the gravitational constant

M is the mass of the Sun

m is the mass of the Earth

r is the separation between the Earth and the Sun

Learn more about Newton's third law:

brainly.com/question/11411375

#LearnwithBrainly

8 0
3 years ago
A baseball player hits a ball with a bat. At one moment the force exerted by the bat on the ball is 18,000 N. At that same momen
11111nata11111 [884]

Answer:

Less than 18000N

Explanation:

Given

Force\ Exerted = 18000N

This question will be answered using Newton's third law.

Understanding this law, it implies that reaction force is equal and opposite to the force exerted.

This implies that;

If the force exerted on the ball is 18000N

the force exerted is -18000N

So, the option that answers the question is less than 18000N because -18000N < 18000N

5 0
3 years ago
Beatrice and the Elevator Beatrice, a middle school student, is visiting a very tall office building and notices that she feels
ahrayia [7]

Explanation:

The question is not complete, here is the complete question

<em>"Beatrice and the Elevator Beatrice, a middle school student, is visiting a very tall office building and notices that she feels heavier when the elevator car is traveling up and lighter when the elevator car is traveling down. After making these observations, Beatrice comes back to the building and stands on a bathroom scale that measures her weight as she travels up and down in the elevator.</em>

<em>1. . What question is Beatrice trying to answer?</em>

<em>2. What is one variable Beatrice could change in her investigation? What might she figure out if this </em>

<em> variable was changed"</em>

1. Beatrice is trying to observe the influence of the elevator movement on her weight, Hence the question is<em> "will the elevator  movement cause her weight to change"</em>

therefore moving upward the reading on the scale will increase

Reading=mg+ma

downward

Reading will reduce

Reading=mg-ma

2. The independent variable is the acceleration due to gravity g=9.81m/s^2

while the dependent variables are

    i. The elevators acceleration

    ii. Beatrice's mass

6 0
3 years ago
A sphere with a radius of 15 cm rolls on a level surface with a constant angular speed of 10 rad/s. To what height on a 30° incl
Scrat [10]

Explanation:

Below is an attachment containing the solution.

8 0
3 years ago
50 points;
inna [77]

A : lighter than lead shot, reducing its velocity and distance

4 0
4 years ago
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