50 POINTS to whoever gets it right

Physics

1 answer:

sasho [114]3 years ago

6 0

D. The hydrogen, being a smaller atom, will take up less space than the oxygen. It will push the water down less.

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How many minutes would it take a light wave to travel from the planet Venus to Earth? (Average distance from Venus to Earth = 28

Gnesinka [82]

Answer:

$t=2.51min$

Explanation:

The time taken by the light to travel a given distance is defined as:

$t=\frac{d}{c}$

Here c is obviously the speed of light. Now we convert the average distance form Venus to Earth to meters:

$28*10^{6}mi*\frac{1609.34}{1mi}=4.51*10^{10}m$

Finally, we calculate the minutes taken by the light to travel from Venus to Earth:

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3 years ago

How much heat is released when 432 g of water cools down from 71'c to 18'c?

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The heat released by the water when it cools down by a temperature difference $\Delta T$ is
$Q=mC_s \Delta T$
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Plugging the numbers into the equation, we find
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3 years ago

If 2 grams of element X combine with 4 grams of element Y to form compound XY, how many grams of element Y would combine with 46

Butoxors [25]

92 grams of Y would combine with 46 grams of X

3 0

3 years ago

Constant speed is the same thing as average speed

larisa86 [58]

No, they have different definitions

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