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Fittoniya [83]
3 years ago
13

A ball was kicked by a player, the ball was stationary, then it gains a velocity of 5 m/s North. Did the ball accelerate or no?

How can you tell?
Chemistry
1 answer:
Tomtit [17]3 years ago
7 0

Answer:

yes

Explanation:

it started moving North 5 m/s

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Name two geologic features found on Earth surface that were caused by the movement of crustal plates.
My name is Ann [436]
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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4 years ago
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Lemonade is an example of a compound because the particles retain their original chemical properties and identity.
Ksenya-84 [330]

Answer:

False

Explanation:

Compounds are chemically combined

lemonade is not

If the squeezed lemonade is made by squeezing lemons to extract the juice and mixing it with water and sugar, it would be a homogenous mixture.

If it contains a pulp than it would be heterogeneous

4 0
3 years ago
What is the term for the smallest bit into which a chemical substance can be divided and still have the properties of that subst
ziro4ka [17]

Answer:

Molecule

Explanation:

molecule of the substance.  You can break the molecule down further, into the atoms that make it up, but those don't have the properties of the original  'compound'.

Here's an example:

-- Sodium is a soft, slippery metal, that explodes when water touches it.

-- Chlorine is a poisonous green gas.

When an atom of Sodium and an atom of Chlorine combine, they make one molecule of a substance called "Sodium Chloride".  That's SALT !  It isn't green, it isn't a gas, it isn't poisonous, it isn't soft and slippery, and it doesn't explode when water touches it.

3 0
3 years ago
What is the molar mass of zinc metal
hodyreva [135]
I believe it is 65.37.

Let me know if this is correct. Also good luck!!
4 0
3 years ago
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What is the energy of a light wave with a frequency of 9.8 x 10^20 Hz?
Wewaii [24]

Answer:

Regions of the Electromagnetic Spectrum

Wavelength (m)Frequency (Hz)Radio> 1 x 10-1< 3 x 109Microwave1 x 10-3 - 1 x 10-13 x 109 - 3 x 1011Infrared7 x 10-7 - 1 x 10-33 x 1011 - 4 x 1014Optical4 x 10-7 - 7 x 10-74 x 1014 - 7.5 x 1014

7 0
3 years ago
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