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Ratling [72]
3 years ago
9

Lucas plugs a lamp into the wall. The light bulb in the lamp turns on. What kind of energy transformation is this? A.)Light ener

gy is transformed into electrical and mechanical energy. B.) Light energy is transformed into mechanical and heat energy. C.) Electrical energy is transformed into light and heat energy. D.) Electrical energy is transformed into mechanical and heat energy.
Physics
2 answers:
Alinara [238K]3 years ago
8 0

C.):

Electrical energy is transformed into light and heat energy

inessss [21]3 years ago
6 0
C. electrical energy is transformed into light and heat energy
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Answer:

The pressure of the air in the tyre is 20 kPa

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The parameters for the bicycle pump and tyre are;

The volume of air contained in the bicycle pump, V₁ = 20 cm³

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Let P₂ represent the pressure in the tyre after the air is pumped

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Mathematically, Boyle's law gives the following equation;

P₁ × V₁ = P₂ × V₂

∴ P₂ = (P₁ × V₁)/V₂

Substituting the known values gives;

P₂ = (100 kPa × 20 cm³)/(100 cm³)

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