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
Snowcat [4.5K]
4 years ago
12

A human being can be electrocuted if a current as small as 50 mA passes near the heart. An electrician working with sweaty hands

makes good contact with the two conductors he is holding, one in each hand. If his resistance is 2000 0, what might the fatal voltage be?
Physics
1 answer:
vaieri [72.5K]4 years ago
8 0

Answer:

Fatal voltage will be 1000 volt

Explanation:

We have given that current is very small as i=50 mA=50\times 10^{-3}A

Resistance is given as R = 20000 ohm

We have to find the fatal velotage

According to ohm's law

We know that voltage is given by V=iR

So fatal voltage will be V=50\times 10^{-3}\times 20000=1000volt

So fatal voltage will be 1000 volt

You might be interested in
What do a prism, a magnifying glass, a microscope, and eyeglasses ALL have in common? A) They are opaque. B) They refract light.
Elena L [17]
By definition, when the speed of the light changes when it passes from a material to another, this is called "Refraction of light". This happens when there is a difference in the index of refraction between both mediums o materials. Therefore, that speed depends of <span>the medium through  it passes. 
</span> 
 T<span>he index of refraction</span> is expressed as below: 
 n=c/v
 
 "n"  is <span>the index of refraction.
</span> "c" is <span>is the speed of light.
</span> "<span>v" is the phase velocity of light in the medium.
</span> 
 A prism, a magnifying glass, a microscope, and eyeglasses refract light. Therefore, the correct option is: B) They refract light.
6 0
3 years ago
Read 2 more answers
13. Calculate the total heat energy in Joules needed to convert 20 g of substance X from -10°C to 70°C?
sergeinik [125]

The heat required to convert the unknown substance X from one phase to another is 1600 J times the specific heat of that substance.

Explanation:

The heat energy required to convert a substance or to heat up or increase the temperature of a substance can be obtained from the specific heat formula.

As per this formula, the heat energy applied should be equal to the product of  mass of the substance with temperature gradient and also with specific heat of the substance. Basically, the heat provided to increase or convert a substance should be more than the specific heat of the substance.

Q = mc del T

Since, here the mass of the substance X is given as m = 20g and the temperature change is given from -10°C to 70°C.

Then ΔT = (70-(-10))=70+10=80°C.

As the substance is unknown, the specific heat of that substance can also not be determined. Hence keep it as C.

Q = 20*C*80

Q = 1600C J

Thus, the heat required to convert the unknown substance X from one phase to another is 1600 J times the specific heat of that substance.

5 0
3 years ago
Should I apply for the Trusted Helpers Program? I want a real answer, if you don’t understand it don’t answer.
Svetradugi [14.3K]

Yes you should if you will like to. It is your opinion so follow your dreams if they are your dreams.

8 0
4 years ago
Read 2 more answers
How long would it take a leopard, running at an average speed of 20 m/s to travel 500 m?
alexandr1967 [171]

Answer:

25 seconds

Explanation:

500/20

4 0
3 years ago
What is a healthy way to cope with distress
STALIN [3.7K]

Answer: Well there is a simple solution which is death..

5 0
3 years ago
Read 2 more answers
Other questions:
  • A camera, a drill, and a hand-squeeze flashlight use either a generator or a motor as a component. Identify which component each
    15·2 answers
  • cooling down after a workout allows the oxygen to continuing moving through the body and keeps the muscles from tightening up to
    12·2 answers
  • What is physics? Why is it important in our life​
    5·2 answers
  • What can we say about the rock as it falls to Earth?
    7·2 answers
  • Read the sentence.
    8·2 answers
  • A particle is in uniform circular motion. Assume a standard rtz coordinate system. If you deconstruct the net force acting on th
    7·1 answer
  • The two jovian planets that contain the highest proportions of hydrogen compounds are ___________. View Available Hint(s) The tw
    9·1 answer
  • Transferring messages from a motor neuron to an arm muscle requires the neurotransmitter known as: (2 points)
    12·1 answer
  • Connecting math to physics
    5·2 answers
  • A cyclist bikes in a straight line at an average velocity of 22 miles/hour east and I’m finishing a 100 mile race how much time
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!