1 At current rates of use, known supplies of oil and natural gas may run out in less than _____ years. (1 point)

1 answer:

7 0

1. At current rates of use, known supplies of oil and natural gas may run out in less than 100 years.
2. The country is
United States
3. These are examples of
non-renewable resources
4. These resources are called
fossil fuels
5. To supply energy needs in the future,
renewable energy sources are being developed.

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There are four springs stretched by the same mass.

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Spring C stretches 100 cm.

Explanation:

The spring constant is simply the stiffness of the spring. The higher the spring constant the more stiff the spring is.

Spring constant shows the force needed to stretch a spring from it's equilibrium position. If a material requires more force to cause it to stretch, it will have a high spring constant.

According to hooke's law "the force needed to extended an elastic material is directly proportional to its extension"

F = ke

k is the spring constant

e is the extension

We see that the spring that stretches by 100 is the less stiff compared to other springs. It has the smallest spring constant.

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