The lifting force generated by fluids on immersed objects is known as ____________.

1 answer:

7 0

The lifting force generated by fluids on immersed objects is known as "Buoyant Force".

and Buoyant force is equal in magnitude to the weight of the fluid displaced by the object.

So, in short, fill "Buoyant Force" in the blank!

Hope this helps!

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The flow of electrons through a circuit is measured in which of the following units? A. electrical pressure B. amperes C. volts

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If the resistance of dry skin is 200 times larger than the resistance of wet skin, how do the maximum voltages without shock com

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Answer:

B) The voltage on dry skin needs to be 200 times larger than the voltage on wet skin.

Explanation:

This is the complete question

A person will feel a shock when a current of greater than approximately 100μ A flows between his index finger and thumb. If the resistance of dry skin is 200 times larger than the resistance of wet skin, how do the maximum voltages without shock compare in each scenario?

A) The voltage on dry skin needs to be 200 times smaller than the voltage on wet skin.

B) The voltage on dry skin needs to be 200 times larger than the voltage on wet skin.

C) The voltage on dry skin is the same as the voltage on wet skin.

D) The voltage on dry skin needs to be 40,000 times larger than the voltage on wet skin.

Ohm's law states that electric current is proportional to voltage and inversely proportional to resistance.

the equation is written as

V = IR

Where V is the voltage

I is the current

R is the resistance

for this case, the current I is 100μ A = 100 x 10^16 A

resistance of wet skin = R

resistance of dry skin = 200R

for the wet skin, voltage will be

V = IR = $100*10^{-6} R$

for dry skin, voltage will be

V = IR = $100*10^{-6}*200R = 0.02R$

Comparing both voltages

$0.02R$ ÷ $100*10^{-6} R$ = 200

this means that the voltage on the wet skin should be 200 times lesser than the voltage on the dry skin or the voltage on the dry skin should be 200 times more than the voltage on the wet skin.

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3 years ago

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Answer:

Magnitude of force on wheel B is 4 N

Explanation:

Given that

$I=mr^2$