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3 years ago

15

10

1 answer:

iogann1982 [59]3 years ago

3 0

Answer:

6 m/s

Explanation:

used omni wavelength calculater

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Describe the different types of objects found in the Universe

Tema [17]

There are asteroids, which are rocks that fly through the space, and meteors which are pretty much the same. The only difference is their sizes. There are also planets, big and small. The moon, the dwarf planet Pluto, and many more. There are probably thousands of other planets that we haven't quite yet discovered. Soon we will though. There are also billions of stars, such as the sun, and some others we don't have names for that form constellations.
Hope this helped!!

4 0

3 years ago

Is the appearance of a light wave changed as it is aborted?

Sonbull [250]

Light waves are never 'aborted'.

They can be 'absorbed', and I think that's what you mean.
It's what happens when light hits something or goes into it,
and never comes out.

"Absorb" just means "soak up". When a light wave hits something and
gets soaked up in it, it's gone, and never comes out the other side.

The light wave certainly gets changed ... it no longer exists.

The object that absorbs it also gets changed. It soaks up the energy
in the light wave, and it has a little more internal energy (heat) than it
had before the light hit it.

7 0

3 years ago

Find the heat given off if 1 kg of 125 degree C steam is cooled to 50 degree C water.

Gnom [1K]

T_i=125°C=398K
T_f=50°C=323K
c=4184J/kg°K
m=1kg
∆T=T_f-T_i=398-323=75K

$\\ \sf{:}\Rrightarrow Q=mc\Delta T$

$\\ \sf{:}\Rrightarrow Q=1(4184)(75)$

$\\ \sf{:}\Rrightarrow Q=313800J$

$\\ \sf{:}\Rrightarrow Q=313.8KJ$

4 0

3 years ago

Two containers have a substantial amount of the air evacuated out of them so that the pressure inside is half the pressure at se

adoni [48]

Answer:

$(a)\ F_{No} = [P_{No} - \frac{P_{area}}{2}]* A$

$(b)\ F_{No} = 771.125N$

Explanation:

Given

$d_D = 6000ft$ ---- Altitude of container in Denver

$A = 0.0155m^2$ -- Surface Area of the container lid

$P_D = 79000Pa$ --- Air pressure in Denver

$P_{No} = 100250Pa$ --- Air pressure in New Orleans

<em>See comment for complete question</em>

Solving (a): The expression for $F_{No$

Force is calculated as:

$F = \triangle P * A$

The force in New Orleans is:

$F_{No} = \triangle P * A$

Since the inside pressure is half the pressure at sea level, then:

$\triangle P = P_{No} - \frac{P_{area}}{2}$

Where

$P_{area} = 101000Pa$ --- Standard Pressure

Recall that:

$F_{No} = \triangle P * A$

This gives:

$F_{No} = [P_{No} - \frac{P_{area}}{2}]* A$

Solving (b): The value of $F_{No$

In (a), we have:

$F_{No} = [P_{No} - \frac{P_{area}}{2}]* A$

Where

$A = 0.0155m^2$

$P_{No} = 100250Pa$

$P_{area} = 101000Pa$

So, we have:

$F_{No} = [100250 - \frac{101000}{2}] * 0.0155$

$F_{No} = [100250 - 50500] * 0.0155$

$F_{No} = 49750* 0.0155$

$F_{No} = 771.125N$

4 0

3 years ago

Which of the statements best describes the relationship between the surface of an object and the amount of friction it produces?

BlackZzzverrR [31]

C.) The rougher the surface of an object, the more friction it will produce.

think of sliding a rock on the street

4 0

3 years ago