Ask question

Ask question

All categories

3 years ago

8

A boy accidentally touch an electric cable and quickly withdrew his hand. Narrate the impulses involved in such action.

2 answers:

Lelechka [254]3 years ago

3 0

Answer:

Quick action was in this as a thought of he knew he could die from this

Stels [109]3 years ago

3 0

Answer:

The correct answer is because of the current.

Explanation:

A boy accidentally touched an electric wire and quickly withdrew his hand. This is because having contact with an electric wire causes a tingling sensation. This causes the person to quickly remove the hand from the wire. The impulse is produced by a contraction of the nervous system. If you grasp the cable with the palm of your hand, it will close and be attached to the cable.

Have a nice day!

You might be interested in

A building made with a steel structure is 565 m high on a winter day when the temperature is 0◦F. How much taller is the buildin

anyanavicka [17]

To solve this problem we apply the thermodynamic equations of linear expansion in bodies.

Mathematically the change in the length of a body is subject to the mathematical expression

$\Delta L = L_0 \alpha \Delta T$

Where,

$L_0 =$ Initial Length

$\alpha =$ Thermal expansion coefficient

$\Delta T =$ Change in temperature

Since we have values in different units we proceed to transform the temperature to degrees Celsius so

$0\°F \Rightarrow (0-32)*\frac{5}{9} = -17.77\°C$

$103\°F \Rightarrow (103-32)*(\frac{5}{9})= 39.44\°C$

The coefficient of thermal expansion given is

$\alpha = 1.1*10^{-5}/\°C$

The initial length would be,

$L_0 = 565m$

Replacing we have to,

$\Delta L = L_0 \alpha \Delta T$

$\Delta L = (565)(1.1*10^{-5})(39.44-(-17.77))$

$\Delta L = (565)(1.1*10^{-5})(39.44-(-17.77))$

$\Delta L = 0.355m$

This means that the building will be 35.5cm taller

3 0

2 years ago

What two characteristics do electromagnetic waves vary in?

rosijanka [135]

They size of the wave and the time of a certain wave.

4 0

2 years ago

Read 2 more answers

Andre, whose mass is 77.1 kg, sits on a diving board above a dunk tank. If he is sitting 0.90 m above the water, what is his tot

Ganezh [65]

Answer:

680 J

Explanation:

Mechanical energy = potential energy + kinetic energy

ME = PE + KE

ME = mgh + ½ mv²

ME = (77.1 kg) (9.8 m/s²) (0.90 m) + ½ (77.1 kg) (0 m/s)²

ME = 680 J

8 0

3 years ago

Read 2 more answers

What is the correct formula for of the weight w of an object? assume that its mass is m, the magnitude of its acceleration is a,

Vsevolod [243]

Weight = Mass × Acceleration

6 0

2 years ago

Read 2 more answers

Light is reflected from a crystal of table salt with an index of refraction of 1.544. An analyser is placed to intercept the ref

Vitek1552 [10]

Answer:

hola me llamo bruno y tu?

Explanation:

pero yo soy de mexico

5 0

2 years ago