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svp [43]
2 years ago
11

Which of the following is a characteristic of a base?

Physics
1 answer:
AleksAgata [21]2 years ago
4 0

Answer:

A. pH greater than 7

Explanation:

Because a base has a pH scale of 8 to 14

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Describe all the ways that newtons laws can apply in a car crash
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Newtons first law - Objects in the car at rest (The human) will remain at rest unless affected by an unbalanced force. Well the unbalanced force would be the crash and this would set the human in motion and they would ether fly out the car if not wearing a seat belt or if wearing one they would get bad whip lash

Newtons second law - With more mass requires more force, so since the human is pretty light or even if heavy in a big crash there will be so much more from it that this will send the human flying.

Newtons 3rd law - Objects A puts force onto objects b and object b excretes the same amount of force back onto object a, so in a crash the human would hit the car hard and the car would excrete the same amount of force back on the human which would really damage him/her
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3 years ago
A mountain-climber friend with a mass of 74 kg ponders the idea of attaching a helium-filled balloon to himself to effectively r
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Answer:

V=16.65 m^3

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reduce 25% from 74kg

R=\frac{25}{100}*74kg=18.5kg

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P_h=\frac{m}{V}=0.179 kg/m^3

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18.5kg*g=(1.29kg/m^3-0.179kg/m^3*)V*g

V=\frac{18.5kg}{(1.29-0.179)kg/m^3}

V=16.65 m^3

4 0
3 years ago
Why are the decomposers categorized as consumers? how do they differ from producers
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Hi! Decomposers (mainly soil bacterium, fungus, or invertebrate)<span /> are categorized as consumers due to the fact that they consume dead organic matter such as plants and animals. They differ from producers (green plants and some bacteria) because they do not produce their own food using photosynthesis or chemosythensis.
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2 years ago
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The specific heat of Aluminum is 0.9 J/g K. The specific heat of Copper is 0.39 J/g K. If samples of equal mass of both Aluminum
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