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zzz [600]
4 years ago
14

A(n) ____ is a place or object used for comparison to determine of something is in motion

Physics
2 answers:
Andre45 [30]4 years ago
4 0
<span>reference point is the answer.</span>
tresset_1 [31]4 years ago
3 0
A reference point is a place or object used for comparison to determine of something is in motion
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When a object is electrically charged, ____ have been added or removed.
DanielleElmas [232]

Answer:

B, electrons.

Explanation:

An electrical charge is created when electrons are transferred to or removed from an object. Because electrons have a negative charge, when they are added to an object, it becomes negatively charged. When electrons are removed from an object, it becomes positively charged.

5 0
3 years ago
I need some serious help, i do not understand this question!!
Shkiper50 [21]

The position where the package strikes the ground is 136.3m.

<h3>Time of motion of the package</h3>

Use the following kinematic equation;

h = vt + ¹/₂gt²

179 = 47t  +  ¹/₂(9.8)t²

179 = 47t + 4.9t²

4.9t² + 47t - 179 = 0

solve the quadratic equation using formula method;

a = 4.9, b = 47, c = -179

t = 2.9 seconds

<h3>Horizontal distance traveled by the package</h3>

X = vt

X = 47m/s x 2.9 s

X = 136.3 m

Thus, the position where the package strikes the ground is 136.3m.

Learn more about time of motion here: brainly.com/question/2364404

#SPJ1

4 0
2 years ago
How did the ideas of einstein and freud contribute to a sense of uncertainty?
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Einstein's Theory of Relativity was a theory which carried about hesitation in Newton's gravity which was measured as an important part of science. Which brings one to query what we detect as being factual. 
Freud's thoughts about the subliminal questions one's own mind to what we have faith in. Is a dream just a dream, or is it your subliminal trying to tell you a little? It brought about a feeling of being ignorant of what is going on in your own mind. 
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Explanation:

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Visible light transmitting through a certain medium.
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