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Naddik [55]
4 years ago
15

Define colloid and list two examples.

Physics
1 answer:
Katyanochek1 [597]4 years ago
8 0
<span>Colloid, in chemistry definition is a heterogenous mixture, of one substance is different from another, when mixed, either of the substance (particularly the solid one), is evenly mixed with each other. It could clearly be seen when one mixes a solution in a suspension state because it forms a cloudy solution, however, in like suspension, it does not settle at the bottom of the mixture. Best example of this is milk. When you mix milk powder to a hot water, the solution is mixed evenly however the color of the water from transparent changes to milkish white.</span>
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An object has a mass of 0.250 kg. What is the gravitational force of on the object by the earth?
sesenic [268]

Answer:

2.4525 N

Explanation:

The earths gravity is 9.81 N/Kg

And so to work this out you would multiply 9.81 by 0.250 which equals to 2.4525N

7 0
4 years ago
When the atmosphere is not quite clear, one may sometimes see colored circles concentric with the Sun or the Moon. These are gen
stealth61 [152]

Answer:

D) diffraction

Explanation:

Corona is an optical phenomenon produced by the diffraction of sunlight or moonlight, as light moves through water droplets in the atmosphere.

This phenomenon produces one or more diffuse concentric rings of light around the Sun or Moon, usually seen as colored circles.

Therefore, the explanation for these phenomena of colored concentric circles, sometimes seen with the Sun or the Moon involves diffraction.

5 0
3 years ago
Inside a NASA test vehicle, a 3.50-kg ball is pulled along by a horizontal ideal spring fixed to a friction-free table. The forc
erastova [34]
F(of spring)=230x=ma=3.5(5)=17.5=230x; x=0.07m.
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3 years ago
What is the conclusion of coin and feather experiment? ​
valina [46]

Answer:

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5 0
3 years ago
Does air resistance affect the motion of a falling object differently when the mass is greater?
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