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Shalnov [3]
3 years ago
15

BRAINLIEST

Advanced Placement (AP)
2 answers:
lorasvet [3.4K]3 years ago
6 0
Elements emit colours when heated because electrons in atoms can have only certain allowed energies.Heating an atom excites its electrons and they jump to higher energy levels. When the electrons return to lower energy levels, they emit energy in the form of light. Every element has a different number of electrons and a different set of energy levels. Thus, each element emits its own set of colours. See, for example, mercury and neon above. Those colours are as distinctive to each element as fingerprints are to people.
Murljashka [212]3 years ago
3 0

Answer:

they change colors when heated

Explanation:

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Explain and give specific examples of how you spend your time each day.
lilavasa [31]

answer : i will search a song

Explanation:

because sometime this thing will make us relax... hahhahahha this is my opinion

8 0
3 years ago
Read 2 more answers
An umbrella policy covers damages to a home caused by water.<br> True<br> False
shtirl [24]

Answer:Umbrella policies protect you from financial liability if you cause damage to another person or their property. Examples of incidents where umbrella insurance may provide coverage include: ... Your bathroom floods and it causes water damage to your downstairs neighbor's home. You're found guilty in a defamation lawsuit so it is false

Explanation:

7 0
3 years ago
Below is the graph of f ′(x), the derivative of f(x), and has x-intercepts at x = -3, x = 1 and x = 2. There are horizontal tang
Alexxx [7]

Answer:

1. f has an inflection point at x = -1.5

Explanation:

Let's analyze each statement given.

1. f has an inflection point at x = -1.5 --> TRUE

An inflection point is a point in which the function f(x) changes concavity: this means that the first derivative of a function has a relative minimum or maximum, and therefore the second derivative is zero, f''(x_0)=0.

In this case, we see that at the point

x = -1.5

The first derivative is flat: this means that at this point, the second derivative is zero, so this is an inflection point.

2. f is increasing on the interval from x = -3.2 to x = -4.5. --> FALSE.

We simply don't know this: in fact, we cannot see the graph of the derivative between -4.5 and -3.2, therefore we don't know if the function is increasing or not.

3. f has a relative minimum at x = 1.5 --> FALSE.

A function f(x) has a relative minimum at a point x_0 if the first derivative f'(x) is zero at that point:

f'(x_0)=0

and moreover, the derivative is negative on the left of the point and positive on the right of the point.

This is not the case: in fact, we see that at x = 1.5 the first derivative is not zero, therefore this statement is not true.

5 0
3 years ago
Why did the Portuguese resort to military soultion to break into the Indian Ocean trading system
MrMuchimi
<span>The Indian Ocean Trade began with small trading settlements around 800 A.D., and declined in the 1500’s when Portugal invaded and tried to run the trade for its own profit.</span>
8 0
3 years ago
What do we mean when we refer to a school's sticker price?
jekas [21]
The "sticker price" is the absurd value you are told you have to pay before receiving any form of financial aid, such as FAFSA, scholarships, grants, etc. This number is usually extremely high, and accounts for dorming, approximate supply costs, tuition, as well as additional fees.
5 0
3 years ago
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