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LUCKY_DIMON [66]
3 years ago
8

What happens to water when it changes to ice?

Physics
1 answer:
mamaluj [8]3 years ago
7 0

When water changes to ice, its density decreases and its volume increases.

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What is the surface temperature of a star that has a peak wavelength of 290 nm?
Maksim231197 [3]
We need to use Wien's Law

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This establishes a relation between the wavelength and temperature of a black body (any body that absorbs radiation, such as the stars)

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How many total atoms in the chemical formula CaCO2?
Gre4nikov [31]

Explanation:

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7 0
3 years ago
A kite is 100m above the ground. if there are 200m of string out what is the angle between the string and the horizontal? (assum
jeka57 [31]

Answer :  The angle between the string and the horizontal is 30 degrees

Explanation:  Imagine this a a triangle where the length of the string (200m) is the hypotenuse and the height of the kite is the opposite side (100m) .

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Now  sin (Theta) = opposite side/hypotenuse

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4 0
3 years ago
Calculate the gravitational attraction between two objects which masses are: mass A: 2.5kg, mass B: 5kg. The distance between th
jonny [76]

From the calculation, the gravitational force of attraction is  1.33 * 10^-14 N.

<h3>What is the gravitational force?</h3>

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F = Gm1m2/r^2

F = 6.67 * × 10−11 * 2.5 * 5/(250)^2

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Learn more about gravitational force:brainly.com/question/12528243

#SPJ1

4 0
2 years ago
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