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Andrew [12]
3 years ago
7

Two balls move away from each other, both traveling at 7 m/s. One has a mass of 2 kg and the other has a mass of 3 kg

Physics
1 answer:
zavuch27 [327]3 years ago
5 0
A 300-kg bear grasping a vertical tree slides down at constant velocity. The friction force between the
tree and the bear is
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How can natural events such as floods hurricanes and tornadoes be predicted
mojhsa [17]

Answer:

Predicting the size, location, and timing of natural hazards is virtually impossible, but now, earth scientists are able to forecast hurricanes, floods, earthquakes, volcanic eruptions, wildfires, and landslides using fractals.

Explanation:

8 0
2 years ago
A student is taking an animal science and an astronomy class. In animal sciences, she learns that pumas are called mountain lion
GarryVolchara [31]

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2. meteoroid

I saw the question.

8 0
3 years ago
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An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left, and then 6 units to the righ
kherson [118]

Answer: 5 units

Let's begin by stating clear that movement is the change of position of a body at a certain time. So, during this movement, the body will have a trajectory and a displacement, being both different:

The trajectory is the path followed by the body (is a scalar magnitude).

The <u>displacement</u> is the distance in a straight line between the initial and final position (is a vector magnitude).

According to this, in the description of the object (figure attached) placed at 0 on a number line and moving some units to the left and some oter units to the right, we are talking about the path followed by the object, hence its trajectory. So, 13 units is its trajectory.

But, if we talk about displacement, we have to draw a straight line between the initial position of the object (point 0) to its final position (point 5).

Now, being this an unidimensional problem, the displacement vector for this object is 5 units.

8 0
3 years ago
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Which of the bodies move,the sun⛅ or the Earth​
alekssr [168]

the Earth moves

The Earth rotates around the sun.

6 0
2 years ago
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Select all the correct answers.
faltersainse [42]

Answer:

so therefore, the comb gains electron and the hair losses electrons

Explanation:

It is known that electron contain a negative charge.

So, when an atom gain electrons then number of electrons within the atom increases. As a result, the atom acquires a negative charge.

But when an atom loses electrons, there will be deficiency of electrons within the atom. As a result, the atom becomes positively charged.

Hence,, when people use plastic combs on their hair, the combs become negatively charged. The situation which is true about this is the comb gains electrons and the hair loses electrons.

4 0
2 years ago
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