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tatuchka [14]
3 years ago
9

Which of the following statements is true?

Physics
2 answers:
Anon25 [30]3 years ago
5 0

The freezing and melting temperatures of a substance are the same.

vampirchik [111]3 years ago
4 0
Option. c freezing and melting temperature of wster is=0 degree celcius roght? but boiling temperature is=100degree celcius
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What are the milestones of modern phyiscs?
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Point charges of 21.0 μC and 47.0 μC are placed 0.500 m apart. (a) At what point (in m) along the line connecting them is the el
rewona [7]

Answer:

a) x = 0.200 m

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q_1 = 47.0\mu C

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E = \frac{kq}{x}^2

according to question E = 0

FROM FIGURE

x is the distance from left point charge where electric field is zero

\frac{k21}{x}^2 = \frac{k47}{0.5-x}^2

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\frac{0.5}{x} = 1+ \sqrt{\frac{47}{21}}

x = 0.200 m

b)electric field at half way mean x =0.25

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E = 3.84*10^{-4} N/C

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3 years ago
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iron ball weight 400 gram inside water when it is completely impressed in water 53 gram water is displaced what will be the weig
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453 gm

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