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Vladimir [108]
4 years ago
11

What is a light-year? A light-year is

Geography
1 answer:
Aleonysh [2.5K]4 years ago
6 0
A point in time that continues goin
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Calculate the total mass of water in kg on Earth's surface from the following data: total planetary surface area: 510,066,000 km
irinina [24]

Answer:

The total mass of water in on Earth's surface is 3.61419\times 10^{22} kg.

Explanation:

Total planetary surface area = T = 510,066,000 km^2

Total land area of planet = L = 148,647,000 km^2

Total water area of planet = W

T = L + W

510,066,000 km^2=148,647,000 km^2-W

W=510,066,000 km^2-148,647,000 km^2=361,419,000 km^2

Volume = Area × Depth

Volume of water on earth = V

V= 361,419,000 km^2\times 100 km^=36,141,900,000 km^3

km^3=10^{12} L

V=36,141,900,000 km^3=36,141,900,000 \times 10^{12} L

Total mass of total water on the earth = M

Density of the water,D = 1 g/mL = 0.001 kg/0.001 L=1 kg/L

1 g - 0.001 kg

1 mL = 0.001 L

D=\frac{M}{V}

M=D\times V

M =1 kg/L\times 36,141,900,000 \times 10^{12} L=3.61419\times 10^{22} kg

The total mass of water in on Earth's surface is 3.61419\times 10^{22} kg.

4 0
4 years ago
Identify the main river that flows through indochina
nirvana33 [79]
The main river is Mekong
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Explain how a coastline of headlands and bays form changes over time
balu736 [363]

Answer:

Cliffs along the coastline do not erode at the same pace. When a stretch of coastline is formed from different types of rock, headlands and bays can form. Bands of soft rock such as clay and sand are weaker therefore they can be eroded quickly. This process forms bays.

Explanation:

Hope it helps...

6 0
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lora16 [44]

Answer: A political map shows different time zones.

Explanation: I hope this helps :) You've got this!

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3 years ago
What are some applications of the field of spectroscopy? Select 5 options.
erik [133]

Answer:

Explanation:

for identifying elements in a sample.

for determining the distance and velocity of galaxies.

for producing neon lights.

for determining types of chemical bonds.

for use in medical imaging devices.

for killing bacteria in foods.

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2 years ago
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