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3 years ago

Visible light occupies the majority of the electromagnetic spectrum? Ture or false

Physics

2 answers:

Novosadov [1.4K]3 years ago

5 0

From what i can tell its false

baherus [9]3 years ago

4 0

Not quite. Out of the 50-some octaves from radio to gamma rays, roughly one (1) octave is visible.

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The food chain in question 1 is; Grass -> Deer -> Wolf

aleksklad [387]

Grass dear wolf is the right awnser

6 0

3 years ago

Explian the construction of electric motor?

Nataly_w [17]

Answer:

Hope the above picture might help you :)

7 0

3 years ago

A cube 6.0 cm on each side is made of a metal alloy. After you drill a cylindrical hole 2.0 cm in diameter all the way through a

Crank

To solve this problem it is necessary to apply the concepts related to Newton's second law, the definition of density and the geometric relationships that allow us to find the volume of the figures presented.

For the particular case of the Cube with equal sides its volume is determined by

$V_c = l^3$

$V_c = 6^3 = 216cm^3$

In the case of perforated material we have that its volume is given according to the cylindrical geometry, that is to say

$V_d = \pi r^2*l$

$V_d = \pi (\frac{2}{2})^2*6$

$V_d = 6\pi cm^3$

In this way the net volume would be

$\Delta V = V_c-V_d$

$\Delta V = 216cm^3-6\pi cm^3$

$\Delta V = 197.15cm^3 = 197.15*10^{-6}m^3$

We need to find the mass, but we have the Weight and Gravity so from Newton's second Law

$F= mg$

$m = \frac{F}{g}$

$m = \frac{6.6}{9.8}$

$m = 0.673kg$

PART A) From the relation of density as a unit of mass and volume we have to

$\rho = \frac{m}{V}$

$\rho = \frac{0.673}{197.15*10^{-6}}$

$\rho = 3413.64kg/m^3$

PART B) To find the weight of the cube then we apply the ratio of

$W = mg$

$W = V\rho g$

$W = (216*10^{-6})(3413.64)(9.8)$

$W = 7.22N$

3 0

3 years ago

What humidity reading would be the driest?

Lunna [17]

The weather report never tells the "humidity" of the air. It tells the
"RELATIVE humidity". That's the percent of the moisture the air
COULD hold at the current temperature that it's actually holding
right now.

If the air is completely dry, then it's holding NONE of the moisture
that it COULD hold, and the relative humidity is zero percent.

7 0

3 years ago

PLEASE HELP.. ILL GIVE U BRAINLY Do you think that air is made of particles? What evidence do you have to support your claim?

3241004551 [841]

Answer:

yes

Explanation:

I think that air is made of particales because air is made out of gas but it has some particales in the air called aerosols.

7 0

3 years ago