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gizmo_the_mogwai [7]

2 years ago

6

Animals need oxygen to complete the many chemical reactions taking place in the body. An animal inhales oxygen and exhales _____

______ as a waste product?
Question 2 options:

Ozone

Carbon Monoxide

Carbon Dioxide

Nitrogen

2 answers:

andreev551 [17]2 years ago

7 0

Carbon dioxide and Nitrogen are the waste products.

mezya [45]2 years ago

5 0

Carbon dioxide and nitrogen

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Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.400mm wide. The diffraction pattern is observed

kogti [31]

Answer:

a) $y_{first}=5.3mm$

b) $y_{second}=10.6-5.3 =5.3 mm$

Explanation:

a)

The width of the central bright in this diffraction pattern is given by:

$y=\frac{m\lambda D}{a}$ when m is a natural number.

here:

m is 1 (to find the central bright fringe)
D is the distance from the slit to the screen
a is the slit wide
λ is the wavelength

So we have:

$y_{first}=\frac{633*10^{9}*3.35}{0.0004}$

$y_{first}=5.3mm$

b)

Now, if we do m=2 we can find the distance to the second minima.

$y_{2}=\frac{2*633*10^{9}*3.35}{0.0004}$

$y_{2}=10.6 mm$

Now we need to subtract these distance, to get the width of the first bright fringe :

$y_{second}=10.6-5.3 =5.3 mm$

I hope it heps you!

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2 years ago

KengaRu [80]

Answers:

1A) Al203

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3 years ago

What is an example of vaporization?

Alenkasestr [34]

Answer:

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A system is a group of objects that’s analyzed as one unit. Consider a car moving along a road that has a flat section and a hil

vladimir1956 [14]

Answer:

a) Em= K +U, b) Em= K

Explanation:

The system in this case is formed by the mobilizes and the hill.

Let's write the expressions correctly and completely.

a) When the car moves in the path, the mechanical energy is the siua of the kinetic energy of the car and the potential energy of the car when going up the hill.

Em = K + U

be) when the car moves in the flat part all the mechanical energy is formed by its kinetic energy that is calculated with the mass and speed of the car

Em = K

c) When the car goes up the hill the energy the mechanical energy is conserved, but part of the kinetic energy is transformed into potential energy.

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1 year ago