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stellarik [79]
3 years ago
13

I really need help with this!

Chemistry
1 answer:
Lady bird [3.3K]3 years ago
8 0

Answer:

Explanation:

The answers are all written in the attachment below. Pardon the writing

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Geologic and fossil evidence suggests that all landmasses were once connected in a supercontinent named PangaeaWhat geologic phe
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A

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continental drift

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What represents a community?<br> pond<br> B<br> a snail<br> snails<br> D snails, guppies and plants
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The volume of a 2.49 g sample of gas is 752 mL at 1.98 atm and 62 C What is the gas?
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3 years ago
A small hole in the wing of a space shuttle requires a 20.7-cm² patch.
cricket20 [7]

The Patch's area of the space shuttle in km² is 2.07 × 10⁻⁹ km²

Given, that a space shuttle requires a 20.7 cm² patch

We have to convert the patch's area from cm² into km².

Unit conversion is a method in which we multiply or divide with a particular numerical factor and then finally round off to the nearest significant digits.

Patch area of the space shuttle is 20.7 cm²

1 cm = 0.00001 km

or, 1 cm² = (0.00001 km)²

or,  1 cm² = 10⁻¹⁰km²

20.7 cm² = 20.7 ×  10⁻¹⁰km²

20.7 cm² = 2.07 × 10⁻⁹ km²

The patch area in square kilometers is 2.07 × 10⁻⁹ km²

To learn more about unit conversion, visit: brainly.com/question/11543684

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8 0
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