1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
antoniya [11.8K]
3 years ago
14

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

pare in each scenario?
Physics
1 answer:
Lelu [443]3 years ago
4 0

Answer:

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

<em></em>

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

<em>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.</em>

You might be interested in
Un hamster esta sentado sobre un tocadisco cuya rapidez angular es constante si el hamster se mueve a un punto localizado al dob
kotegsom [21]

Answer:

b) se duplica

Explanation:

The disk is moving with constant angular velocity, let's call it \omega.

The linear velocity of a point on the disk is given by

v=\omega r

where r is the distance of the point from the axis of rotation.

In this problem, the object is moved at a distance twice as far as the initial point, so

r' = 2r

Therefore, the new linear velocity is

v'=\omega r' = \omega (2r) = 2 \omega r = 2 v

So, the velocity has doubled, and the correct answer is

b) se duplica

8 0
2 years ago
How could you compare the energy carried in two different longitudinal waves
jenyasd209 [6]
<span>U could compare them using the intensity technique when bending waves are negligible in comparison with quasi-longitudinal waves.</span>
7 0
3 years ago
Read 2 more answers
Compare and contrast static, sliding, and rolling friction.
Mama L [17]
Static friction - the friction that occurs when a force is being applied on a still object. 

Sliding friction - the friction that occurs upon a moving object; it is always lower than the static friction of the same object.

Rolling friction - the friction on a rolling object; it is actually a form of static friction with the contact point of the wheel with the surface.
4 0
3 years ago
An object is placed at a far distance in front of a thin converging lens. Then the object (1 point) moves gradually toward the l
xeze [42]

Answer:

real, and then virtual

Explanation:

A converging lens is known as convex lens. This lens is called converging lens because it converges all light rays incident on the lens and parallel to the principal axis at the focus.

The nature of image formed by objects placed in front of this lens as mostly REAL IMAGES. The image formed becomes virtual only when the object is almost in close contact with the lens.

Based on the explanation, it can be deduced that an object placed far from a convex lens forms real images but as we move closer to the lens (almost touching the lens), the image formed overtime tends to be virtual.

8 0
3 years ago
How are we Made out of cells
Anna [14]
All living beings are made up of cells. Some of them are made up of only onecell and others have many cells. The average adult human body has around 37.2 trillion cells.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Combining which of the following substances with germanium will cause the germanium to emit free electrons?
    15·2 answers
  • How does seismic waves cause earthquakes?
    15·2 answers
  • What's is the biggest dog
    11·2 answers
  • Two loudspeakers emit 600 Hz Hz notes. One speaker sits on the ground. The other speaker is in the back of a pickup truck. You h
    11·1 answer
  • A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.820 m. W
    9·1 answer
  • 1) For a positive point charge, the lines radiate ………. . While, for a negative point charge, the lines converge …………. .
    9·1 answer
  • What are the three ways to lessen any risk?
    7·2 answers
  • Which statement explains how it is possible to carry books to school without changing the kinetic or potential energy of the boo
    12·1 answer
  • Considerando la luz como una onda, si un rayo de luz láser pasa del aire a un vidrio transparente, ¿Cuál de las siguientes carac
    9·1 answer
  • A cyclist accelerates from a velocity of 10 miles/hour east until reaching a velocity of 20 miles/hour east in 5 seconds. What w
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!