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Allisa [31]
3 years ago
13

What energy transformation occurs when a car stereo is turned on?

Biology
2 answers:
Sati [7]3 years ago
6 0
The electrical energy is transferred in to sound energy. 
yKpoI14uk [10]3 years ago
5 0

Answer:

Energy does not disappear, the energy is transformed from one form into another form. When a car stereo is turned on, the car radio converts radio waves to electrical energy, next the electrical energy in transformed in sound. It means when someone turn on a radio we have electrical energy, which is transformed into electrical energy and then into energy acoustic.

The complete sequence of energy is:

First transmission sound energy is converted into mechanical energy then electrical energy in the microphone, next into radio waves that is electromagnetic energy. The aerials convert electromagnetic energy in electrical energy and next in magnetic and mechanical energy and finally in sound energy.

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Explanation:

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In order to determine the rate of photosynthesis (the conversion by plants of carbon dioxide and water into glucose and oxygen),
Rama09 [41]

Answer:

1.6896 grams

Explanation:

Given that:

Total pressure = The pressure of  O_2 + partial pressure of H_2O

∴

The pressure of  O_2  = Total pressure - partial pressure of H_2O

= (754.8 - 17.55) mmHg

= 737.25 mmHg

At standard conditions:

1 mmHg = 0.00131579 atm

∴

737.25 mmHg will be: (737.25*0.00131579) atm = 0.970065928 atm

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n = \dfrac{0.97 \times 1.31}{0.0821 \times 293}

n = 0.0528

mass of oxygen  O_2 = no. of moles * molar mass

= 0.0528 * 32

= 1.6896 grams

6 0
2 years ago
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