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4 years ago

What can you infer from the fact that although CFC's have been banned, refrigerators and aerosol cans are still being sold?

2 answers:

6 0

Researcher must have found environmentally safer replacements for CFCs. That might be the reason aerosol cans and the refrigerators are still being sold. In aerosol cans liquefied petroleum gas is being popularly used in place of dangerous CFCs. Same is being done in refrigerators and other devices. The aerosol cans no longer hurt the ozone layer. Infact they have reduced the waste as they can be recycled now and has long life.

oksian1 [2.3K]4 years ago

3 0

It would be "Researchers found environmental safe replacements for CFC's"

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Determine the effective spring constant of the suspension system of a car. Consider a load of 4 passengers, each with a mass of

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Answer:

The value of spring constant for each spring of the suspension system of a car K = 343.35 $\frac{N}{cm}$

Explanation:

Total force on the springs = weight of the four passengers

⇒ F = 4 × 70 × 9.81

⇒ F = 2746.8 N

In the suspension system of the car the four springs are connected in parallel. So Equivalent spring constant is given by,

⇒ $K_{eq}$ = 4 K -------- ( 1 )

Depression in the spring Δx = 2 cm

Now the force on the spring is given by

F = $K_{eq}$ × Δx

⇒ $K_{eq}$ = $\frac{2746.8}{2}$

⇒ $K_{eq}$ = 1373.4 $\frac{N}{cm}$

Now the spring constant for each spring = $\frac{K_{eq}}{4}$

⇒ K = $\frac{1373.4}{4}$

⇒ K = 343.35 $\frac{N}{cm}$

This is the value of spring constant for each spring of the suspension system of a car.

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