Which of these uses thermal energy to do work?

A) a person walking uphill
B) a hot air balloon
C) an electric heater
D) All of the above.
E) None of the above.


B

Physics & Space Science

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Answer the following statement true (T) or false (F)

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Which of the following stars is hottest?

A. G B. F C. M D. O E. B

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If an electron is determined to be at x = 2.000 cm ± 0.0010 cm, what is the minimum uncertainty in the x component of its velocity? (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s)

What will be an ideal response?

Physics & Space Science

The maximum elongation of a typical metal is reached at the breaking point

Indicate whether the statement is true or false

Physics & Space Science