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3 years ago

Answer these, and tell me HOW you got to the answer.

1 answer:

4 0

Here are the answers :)

$\boxed{\bf{27)~Contrast}}$

$\boxed{\bf{45)~The~edges~of~objects}}$ 

 $\boxed{\bf{67)~Light~comes~from~above}}$

 $\boxed{\bf{78)~Eyes~and~mouth}}$

$\boxed{\bf{88)~All~of~the~above}}$

Hope that helps you! :)

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Given equation is F=mv ×v/R what is the relationship exist between F and R?

irina [24]

This is called an "inverse" relationship because the bigger R becomes, the smaller F becomes as a result. you can do a couple of calculations on your calculator to see this (just increase R and watch what happens to F).

Also, when an equation has F = (x.y)/R^2 we call this the "inverse square" relationship, since it is also inverse, but squared. In practice it means that every time you double R, F decrease by 4 times! You will see this in physics a lot, so it's good to know!

8 0

3 years ago

Which explains what a velocity time graph would look like with no acceleration?

ololo11 [35]

Straight line with no slope

7 0

2 years ago

Read 2 more answers

Pepsin is a digestive enzyme that Pepsin is a digestive enzyme that splits maltose into monosaccharides. is manufactured by the

LUCKY_DIMON [66]

Answer:

The correct option is: begins the hydrolysis of proteins in the stomach

Explanation:

Pepsin is a protease enzyme that is synthesized by the stomach. It is the main gastric enzyme that helps in the digestion of proteins molecules present in the food.

The pepsin enzyme catalyzes the acid hydrolysis of the peptide bond in the proteins at a very low acidic pH of 1.5-2.0.

This enzyme becomes inactive at pH 6.0 and gets fully denatured or irreversibly inactivated as the pH increases to 8.0.

8 0

3 years ago

"In a bad late-night science fiction film, a villain is using a large collection of radioactive atoms as energy for a weapon to

Veronika [31]

Answer:

t=1.4hours

Explanation:

The half life is 1hour

At t=0 he has a mass of 4kg

So he want it to be 1kg, so that his weapon can work.

Applying the exponential function of decay

M=Cexp(-kt)

Where,

M is the mass at any time

C is a constant of integration

k is the rate of decay

Given that it has an half life of 1 hours.

Then k is 1

At t =0 the mass is 4kg

Therefore

4=Cexp(0)

C=4

M=4exp(-kt)

Since rate of decay is 1, then k=1

M=4exp(-t)

We need to find t at M=1kg

1=4exp(-t)

1/4=exp(-t)

0.25=exp(-t)

Take In of both sides

In(0.25)=-t

-1.3863=-t

Then, t=1.386hour

Then it will take about 1.4 hours to get to 1kg.

3 0

3 years ago

A sample neon gas has its volume tripled and its temperature held constant. What will be the new pressure relative to the initia

liberstina [14]

Answer:

Correct answer: p₂ : p₁ = 1 : 3

Explanation:

A process that occurs at a constant temperature is called an isothermal process and the formula that applies to this process is:

p · V = const where p is pressure and V is volume

Given : V₂ = 3 V₁

p₁ V₁ = p₂ V₂ ⇒ p₂ / p₁ = V₁ / V₂ ⇒ p₂ / p₁ = V₁ / 3 V₁ ⇒ p₂ / p₁ = 1 / 3

p₂ : p₁ = 1 : 3

which means that when the volume is increased three times the pressure is reduced three times

God is with you!!!

5 0

3 years ago