4 years ago

Which statement about thermal energy (or heat energy) is most accurate?

Physics

1 answer:

Aneli [31]4 years ago

7 0

It increases with the motion of particles within a substance

I just took the test

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Please help me guys never mind the calculations

vlada-n [284]

The shape is connected in parallel so;

5.1) Ans;

$\frac{1}{R} = \frac{1}{R1} + \frac{1}{R2} \\ \frac{1}{R} = \frac{1}{2} + \frac{1}{3} \\ \frac{1}{R} = \frac{3 + 2}{6} = \frac{5}{6} \\ R = \frac{6}{5} = 1.2 \: \: ohm$

5.2) Ans;

$\frac{1}{R} = \frac{1}{R1} + \frac{1}{R2} \\ \frac{1}{R} = \frac{1}{8} + \frac{1}{10} \\ \frac{1}{R} = \frac{5 + 4}{40} = \frac{9}{40} \\ R = \frac{40}{9} = 4.4 \: \: ohm$

I hope I helped you^_^

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3 years ago

A student stands with both feet on some scales in order to measure his weight.

Neko [114]

Answer:

500 N

Explanation:

Because even if he lift one foot his weight will be same as the pressure applied on the scale will be the same and will not change it is not that the scale measures each foot separately

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3 years ago

Why are the orbits of planets only nearly circular and not perfectly circular?

Galina-37 [17]

Explanation:

this is my answer this is helpful for you

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3 years ago

For each 1 degree Celsius that temperature incileases, the speed of<br> sound ___ by 0.6 m/s.

Levart [38]

Answer:

A: For each 1 degree Celsius that temperature decreases, the speed of sound decreases by 0.6 m/s. So sound travels through dry, -20 °C air at a speed of 319 m/s

Explanation:

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3 years ago

Which of the following is the best hypothesis

tekilochka [14]

Answer:

Melting and frezzing are physical changes

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3 years ago