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sweet [91]
3 years ago
9

What other issues, besides addiction, might go along with overuse of phones?

Physics
1 answer:
inn [45]3 years ago
6 0
Eye strain and self confidence issues.
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Explain why the temperature for freezing point and boiling point are the same.
Tasya [4]
We have to wonder what substance you're working with.  Under normal, human environmental conditions, there are almost no substances that freeze and boil at the same temperature. 

However, EVERY substance has SOME temperature, at some pressure, at which it "sublimes" ... passing directly from solid to gas, or from gas to solid, without existing in liquid form in between.  Even water does that, if the conditions are right.
7 0
3 years ago
Read 2 more answers
The density of a substance is its mass per unit volume. 
Over [174]

Answers:

a) kg/m^{3}

b) derived

Explanation:

Density D is a characteristic property of substances and materials and is defined as the relationship between the mass m and volume V of a specific substance or material, as shown below:

D=\frac{m}{V}

This means density is inversely proportional to volume.

In addition, density is a derived unit, because is based on two basic units of the International Sistem of Units: Mass (kilograms) and Volume (cubic meters)

7 0
2 years ago
The color of light emitted during a flame test depends on
Gennadij [26K]
D hope this helps :))))
7 0
3 years ago
The platofm on the school stage is 8 3/4 feet wide. each chair is 1 5/12 feet wide. how many chairs will fit acroos the platform
wariber [46]

6 chairs will fit across the platform.

<h3>Calculation</h3>

We have a school stage of 8 3/4 feet wide.

It's also given that each chair is 1 5/12 feet wide.

To find out the number of chairs possible we can simply divide the total length available by width of the chair.

8 3/4 = 35/4

1 5/12 =17/12

So, 35/4 / 17/12

So, the final answer comes up to 6.

so, the total number of chairs that would fit in are 6.

To know more about random number intervals, visit:

brainly.com/question/13657605

#SPJ4

3 0
1 year ago
A ray of light exits from a material with a refractive index of 1.75, traveling into air. The angle of refraction is 25°. What w
Viktor [21]

Answer:

θi = 47.7°

Explanation:

The formula for the refractive index is as follows:

n = \frac{Sin\theta_i}{Sin\theta_r}

where,

n = refractive index = 1.75

θi = angle of incidence = ?

θr = angle of refraction = 25°

Therefore,

1.75 = \frac{Sin\ \theta_i}{Sin\ 25^o} \\\\(1.75)(Sin\ \ 25^o) = Sin\ \theta_i\\\\\theta_i = Sin^{-1}(0.739)

<u>θi = 47.7°</u>

3 0
3 years ago
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