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2 years ago

Is water wet? Is milk wet as well? Just curious.

2 answers:

8 0

Water molecules are not wet however water can make things wet.

If you want to really think about it water molecules make things wet... so can water molecules make other water molecules wet??

VladimirAG [237]2 years ago

7 0

Not this again.

Technically speaking, atoms cannot be wet, but it can make things feel wet. So yes, milk and water are 50/50 wet.

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What mass of oxygen reacts when 4.50 moles of water are produced?

denis23 [38]

Answer:

120 g

Explanation:

mass of reactants+ mass of products=one mole of oxygen= 120 g

6 0

2 years ago

An owl has good night vision because its eyes can detect a light intensity as small as 5.0 × 10-13 W/m2. What is the minimum num

Lady bird [3.3K]

Answer:

Thus, the minimum number of photons per second is 77.34

Explanation:

Light intensity, $I_{min}$ = $5\times 10^{-13} W/m^{2}$

Pupil has a diameter, d = 8.5 mm

= 8.5 x $10^{-3}$ m

Radius of the eye, r = 4.25 x $10^{-3}$ m

∴ Area of the eye, A = $\pi .r^{2}$

= $3.14\times \left ( 4.25\times 10^{-3} \right )^{2}$

= $5.6\times 10^{-5} m^{2}$

Let $P_{min}$ be the minimum number of photons.

Therefore, $P_{min}$ = $I_{min}$ x A

= $5\times 10^{-13}$ x $5.6\times 10^{-5}$

= $2.8\times 10^{-17}$ W

Thus the minimum number of photons is given by

$N_{min}=P_{min}/E$

where E = $hc/\lambda$

= $\left (6.63\times 10^{-34}\times 3\times 10^{8} \right )/548\times 10^{-9}$

= $3.62\times 10^{-19} J$

Therefore, $N_{min}$ = $\frac{2.8\times 10^{-17}}{3.62\times 10^{-19}}$

= 77.34 photons per second

Thus, the minimum number of photons per second is 77.34

4 0

3 years ago

Which of these organisms give birth to its young one alive? a. lizard b. man c. fish d. snake

jenyasd209 [6]

Answer:

b. man

Explanation:

lizards, fish, and snakes lay eggs while humans (and most mammals) give birth

3 0

3 years ago

The r groups on amino acids determine their unique characteristics. how does an amino r-group on an amino acid behave at ph 7 in

Leviafan [203]

It serves as a base and gains a proton, which charges it positively.

What is amino acid?

Proteins are made up of substances called amino acids. Proteins and amino acids are the components of life. Amino acids are the byproducts of the digestion or breakdown of proteins. Amino acids are used by the body to create proteins that aid in the digestion of meals.

Organic substances known as amino acids have both an amino and a carboxyl group. They can be differentiated by the functional group R that is attached. Six of the twenty amino acids that make up proteins have R-groups that are either bases or acids.

To learn more about amino acids click on the link below:

brainly.com/question/21327676

#SPJ4

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1 year ago

Sarah decides to Monitor the tides at her local beach. She reads tide charts and creates the graph below. What type of tide a cu

Marta_Voda [28]

I'm sorry to use an answer for this, but that last sentence doesn't make sense.

7 0

3 years ago