3 years ago

Why do different substances have diffrent properties

Physics

2 answers:

Artist 52 [7]3 years ago

8 0

Different elements require different levels of energy to make or break a bond

user100 [1]3 years ago

8 0

Different elements require different levels of energy to make or break a bond

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Which energy does a car travelling 30 m/ph as it slows have:

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Answer:

c) kinetic energy

Explanation:

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A lorry of mass 4000 kg is travelling at a speed of 4 m/s.

bulgar [2K]

Answer:

KE = 32,000J

v = 8m/s

Explanation:

KE = .5*m*v²

KE = .5*4000kg*(4m/s)²

KE = 32,000J

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Which hand is negatively charged? ОА ОВ. Ос. OD

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Answer is OB
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