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4 years ago

Conduction involves the transfer of electric charge or blank

Physics

2 answers:

Zarrin [17]4 years ago

5 0

Conduction involves the transfer of electric charge or (thermal energy)

Tema [17]4 years ago

3 0

Answer: The correct answer is "thermal energy".

Explanation:

Conduction: Heat flows from hotter body to colder body provided they are placed in direct contact with each other until the temperatures on both bodies become equal. In conduction, there is not actual movement of matter.

Thermal energy: It is the energy that comes from the heat.

Conduction is the process in which there is a transfer of the electrons between the charged object to the another object provided the objects are in direct contact with each other. The electrons are transferred from the object having more negative charge to the object that has more positive charge. There is a transfer of the electrons until the charges on both the objects become equal.

Therefore, the conduction involves the transfer of the electric charge or thermal energy.

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A child has an ear canal that is 1.3 cm long. At what sound frequencies in the audible range will the child have increased heari

ElenaW [278]

Answer:

The answer to this is

6600 Hz to 19,800 Hz

Explanation:

The shape of the human ear is analogous to a closed ended pipe hence

we have λ = 4L or wavelength = 4 * length of the child ear

The frequency c/λ where c = speed of sound = 343 m/s

hence the child's audible range is multiples of 343/(4*0.13) =6600Hz

or 13200 Hz or 19,800 Hz

The generally quoted range of human hearing is 20 Hz to 20 kHz

7 0

3 years ago

You lift your pet cat vertically by 2m and then you lower it vertically by 2m .during this exercise is the total work done by gr

rosijanka [135]

Zero, cause the positive and negative work cancel out :)

8 0

4 years ago

Which layer of the atmosphere has the lowest density?

stich3 [128]

Hello,

The exosphere is the lowest<span> in density of the </span>layers of the atmosphere.

The higher up you get into the atmosphere, the lower the density becomes. Thus, the troposphere has the highest density of the five layers.

Faith xoxo

6 0

3 years ago

What is the transmitted intensity of light if unpolarized light passes through a single polarizing filter and the initial intens

Gennadij [26K]

Answer:

The transmitted intensity is $I = 40 \ W/m^2$

Explanation:

From the question we are told that

The intensity of the unpolarized light $I_o = 80 \ W /m^2$

Generally for a single filter the transmitted intensity of light is mathematically evaluated as

$I = \frac{I_o}{2}$

substituting values

$I = \frac{80}{2}$

$I = 40 \ W/m^2$

4 0

3 years ago

1.) What things signal the coming of spring?

olasank [31]

Answer:

In Explanation

Explanation:

The signs of the coming of spring include firstly the sight of Robins. It is believed that the sight and singing of the Robins is considered arrival of spring by many in the US. Secondly, the winter is not yet over but the blooming of Daffodils first of all flowers is indication of the spring. As the air gets warmer the flowers bud and new leaves start growing on trees since the days also begin to get longer providing much warmth which also an indicator of the spring.
Without the axial tilt of our Earth, firstly, the Sun would have remained above the equator (Equinox) forever but fortunately due to the tilt we get equinoxes twice a year and not forever. Moreover, the temperature and precipitation levels would not vary much and the equator would remain always warm and the poles always cold. Secondly, due to the tilt as the Earth orbits around the Sun and with changes in solstices we get variety of the seasons which would have been impossible otherwise.

7 0

3 years ago