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vodka [1.7K]
3 years ago
15

Which is not a property of a pure substance

Physics
1 answer:
Ann [662]3 years ago
5 0

air is a mixture and not a pure substance.

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A bowl contains 4 red balls and 2 green balls. Two balls are selected simultanesouly and at random. What is the conditional prob
AlladinOne [14]

Answer:0.6

Explanation:

Given

Bowl contains 4 red and 2 Green balls

Probability of selecting two red balls given atleast one of the ball is red + Probability of selecting two red balls given that no ball is red =1

Probability of selecting two red balls given that no ball is red =\frac{Probability \ of\ selecting\ two\ red\ balls\ out\ of\ 4\ balls}{probability\ of\ selecting\ 2\ balls\ out\ of\ 6 balls}

P=\frac{^{4}C_2}{^{6}C_2}

P=\frac{2}{5}

Required Probability=1-\frac{2}{5}=\frac{3}{5}

7 0
4 years ago
Page 40-44 earth science regents<br> just post the picture of the pages please
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3 years ago
Which is the currrent SI unit to use in measuring the amount of material contained in a solid sphere
olya-2409 [2.1K]
Hey

SI unit for measure the amount of material contained in a solid sphere metre cube(m^3).

mean it have Volume .
3 0
3 years ago
Help, please!!!!!<br> I just need help putting the vocab word in the box where it belongs.
Ber [7]

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8 0
3 years ago
An 8.00- W resistor is dissipating 100 watts. What are the current through it and the difference of potential across it?
hjlf

Answer:

I= 3.5 amps

Explanation:

Step one:

given data

rating of resistor R= 8 ohms

power P= 100W

Required

The current I

Step two

Yet this power is also given by

P = I^2R

make I subject of the formula we have

I= \sqrt{\frac{P}{R} }

substitute

I= \sqrt{\frac{100}{8} }\\\\I=\sqrt{12.5}\\\\I= 3.5 amps

8 0
3 years ago
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