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2 years ago

Complete the table below describing renewable energy sources and the energy transformations that occur

Physics

1 answer:

worty [1.4K]2 years ago

5 0

Answer:

See the complete table below.

Explanation:

Hydroelectricity = Potential energy to electrical energy.

Photovoltaic solar energy = Radiant energy to electrical energy.

Solar thermal energy = Thermal energy to electrical energy.

Note: The difference between thermal solar energy and photovoltaic solar energy is that, for photovoltaic energy special panels should be used that convert the solar incidence into electrical energy, while solar energy panels are used to heat water or other similar fluid, either for hot water supply or steam generation, to supply this to a turbine.

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Which of the following statements describes a compound machine?

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From the word compound, the compound machine is already a combination of two or more types of simple machine. Thus, the answer is letter C. Because of its complexity, it is able to perform several other functions than a simple one.

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At what time were the racers at the same position?<br> O 15<br> O 3s<br> O 5s<br> 0 4s

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A playground slide is in the form of an arc of a circle with a maximum height of 3.0 m, with a radius of 8.5 m, and with the gro

julia-pushkina [17]

Answer:

a) $s \approx 6.676\,m$

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The bottom of the slide has a height of zero. The physical phenomenon around Dr. Ritchey's daughter is modelled after Principle of Energy Conservation. The child begins at rest:

$U_{g,A} = K_{B} + W_{fr}$

$m\cdot g \cdot h_{A} = \frac{1}{2}\cdot m \cdot v_{B}^{2} + f\cdot s$

The average frictional force is cleared within the expression:

$f = \frac{m\cdot (g\cdot h_{A}-\frac{1}{2}\cdot v_{B}^{2})}{s}$

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$f = 34.684\,N$

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