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ELEN [110]
4 years ago
13

What do wind turbines, hydroelectric dams, and ethanol plants have in common

Physics
1 answer:
deff fn [24]4 years ago
7 0
They all produce light and stuff
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A 5.50-kg object is hung from the bottom end of a vertical spring fastened to an overhead beam. The object is set into vertical
iris [78.8K]

Answer:

17.71N/m

Explanation:

The period of the spring is expressed according to the expression;

T = 2 \pi \sqrt{\frac{m}{k} } \\

m is the mass of the object

k is the force constant

Given

m = 5.50kg

T = 3.50s

Substitute into the formula;

T = 2 \pi \sqrt{\frac{m}{k} } \\3.5 = 2 (3.14) \sqrt{\frac{5.5}{k} } \\3.5 = 6.28 \sqrt{\frac{5.5}{k} } \\\frac{3.5}{6.28} =  \sqrt{\frac{5.5}{k} } \\0.557 = \sqrt{\frac{5.5}{k} } \\square \ both \ sides\\0.557^2 = (\sqrt{\frac{5.5}{k} })^2 \\0.3106 = \frac{5,5}{k}\\k = \frac{5.5}{0.3106}\\k =  17.71N/m

Hence the force constant of the spring is 17.71N/m

4 0
3 years ago
What is the correct definition for energy?
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Property of objects which can be transferred to other objects or converted into different forms.
3 0
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Which formula can be used to find the tangential speed of an orbiting object?
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The correct formula for calculating the tangential speed of an orbiting object is V(t)=wr.
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r= Radius of the Path

Hope this helps.
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At which point is there the most potential energy? At which point is there the most kinetic energy?
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Answer:

The cart mark (a) has the most potential energy and the cart marked (b) has the most kinetic energy

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Which of these materials is permeable?​
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Correct answer is letter B. sandstone
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