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Svetlanka [38]
2 years ago
6

Jimena is stopped at a red light. When the light turns green, she

Physics
1 answer:
Ludmilka [50]2 years ago
8 0
First one accelerated
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LuckyWell [14K]

Answer: question 1 is b I believe

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every action has an opposite reaction

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Which of the following materials is attracted to a magnet?
Butoxors [25]

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A. aluminum

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because it's metal

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A common pickup for an electric guitar consists of a coil of wire around a small permanent magnet, as described in Figure 25.5.
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2 years ago
The total surface area of the human body is 1.20 m2 and the surface temperature is 30∘C=303∘K. If the surroundings are at a temp
zalisa [80]

To solve this problem we must consider the expressions of Stefan Boltzmann's law for which the rate of change of the radiation of energy H from a surface must be

H = Ae\sigma T^4

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e = Emissivity that characterizes the emitting properties of the surface

\sigma = Universal constant called the Stefan-Boltzmann constant (5.67*10^{-8}m^{-2}K^{-4})

T = Absolute temperature

The total heat loss would be then

Q = H_2 -H_1

Q =Ae\sigma T_2^4-Ae\sigma T_1^4

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8 0
2 years ago
HURRY WILL MARK BRAINLIEST Farha makes the graphic organizer shown to review the characteristics of transistors.
BabaBlast [244]

Answer:

<em>C. It is made from three layers of semiconductors.</em>

<em></em>

Explanation:

<em>Bipolar transistors (pnp and npn) are usually made from a sandwich of three semiconductors layers</em>. The main charge carriers are holes and electrons. An npn transistor has two semiconductor junctions that share a thin middle positively enhanced region (the material is enhanced with impurities rich in holes which are the positive charge carriers), and a pnp transistor has two semiconductor junctions that share a thin middle negatively enhanced region (material is enhanced with impurities rich in electrons, the negative charge carriers).

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3 years ago
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