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marshall27 [118]
2 years ago
12

One difference between mixture and pure substances is that

Physics
1 answer:
Lunna [17]2 years ago
7 0
Pure substances can be elements made up exclusively of one kind of atom, or they can be compounds made up of molecules that include two or more elements. Mixtures can be homogeneous or heterogeneous depending on how finely mixed the components are.
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As a result, the total energy in a ____ system (in other words, a system with no external forces) will remain constant
Alika [10]

Answer:

Isolated or Closed system, both are correct

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2 years ago
State any two effects of gravitational force​
Dmitry_Shevchenko [17]
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3 years ago
Question 6 Multiple Choice Worth 4 points)
allsm [11]

is iron and aluminium is there

6 0
2 years ago
A 13,000 kg helicopter accelerates upward a 0.5 m/s^2 while lifting a 2000 pound car. to the nearest newton, what is the lift fo
Vinil7 [7]

Lift force exerted by the air on the rotors=143244 N

Explanation:

we use Newtons second law

F- (M+m)g=(M+m)a

F= lift force

m= mass of helicopter= 13000 Kg

M= mass of car= 2000 lb=907.2 kg

a= acceleration= 0.5 m/s²

g= acceleration due to gravity

F- (M+m)g=(M+m)a

F=(M+m)(a+g)

F=(13000+907.2)(0.5+9.8)

F=143244 N

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3 years ago
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Answer is a
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