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Morgarella [4.7K]
3 years ago
8

According to Newton’s first law of motion, when will an object at rest begin to move?

Chemistry
2 answers:
Maurinko [17]3 years ago
8 0
When it is acted upon by an outside force
Reika [66]3 years ago
6 0
An object at rest begin to move when it is forced by another object or a outside force.
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Name two geologic features found on Earth surface that were caused by the movement of crustal plates.
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Formation of mountains by one continental plate moving into another (Indian plate pushing north, forming the Himalayas)

Vocanoes from an oceanic plate being submerged beneath another plate and melting, causing liquid hot magma to rise to the surface
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3 years ago
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A race car is driven by a professional driver at 99 . What is this speed in and ? 1 mile = 1.61 kilometers 1 hour = 60 minutes E
slavikrds [6]

Answer: The speed is equivalent to <u>159.39 kilometers per hour </u>or <u>2.65 kilometers per minute.</u>

Explanation:

Given, The speed of a race car = 99 miles/ hour

To convert the speed into  kilometers per hour and kilometers per minute

Since   1 mile = 1.61 kilometers

So, Speed of car = (99 ) x (1.61 )

= 159.39 kilometers per hour.

Also, 1 hour = 60 minutes

Then, Speed of car = (159.39) ÷60

= 2.6565≈2.65 kilometer per minute.

Hence, the speed is equivalent to <u>159.39 kilometers per hour </u>or <u>2.65 kilometers per minute.</u>

4 0
3 years ago
Below is a picture of two blocks made of different materials. Block A Block B grams grams If Block A is located on the Moon and
AURORKA [14]

Answer:

A

Explanation:

this is because density is the mass per unit volume of an object

4 0
2 years ago
a sample of ammonia contains 9g hydrogen and 42g nitrogen. another sample contains 5g hydrogen .calculate the amount of nitrogen
balandron [24]
9 g of hydrogen - 42 g of nitrogen
5 g of hydrogen - x g of nitrogen

9x=42 \cdot 5 \\&#10;9x=210 \\&#10;x \approx 23.33

The mass of nitrogen in the second sample is 23.33 g.
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3 years ago
What differentiates one element from another
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I think the number of protons in the nucleus the number of valence electrons atomic mass... 
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2 years ago
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