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sashaice [31]
3 years ago
5

A scale contains a spring with a spring constant of 291 N/m. Placing a mass on the scale causes the spring to be compressed by 2

.89 cm. Calculate the elastic potential energy stored in the spring.
Physics
1 answer:
WINSTONCH [101]3 years ago
6 0
E = 1/2*k*x^2 = 0.5*291*0.0289^2 = 0.12 J
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Nesterboy [21]

Answer:

3.34 kJ

Explanation:

FIrst of all, we need to calculate the number of moles corresponding to 10.0g of ice. This is given by

n=\frac{m }{M_m}

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Substituting

n=\frac{m}{M_m}=\frac{10 g}{18.02 g/mol}=0.555 mol

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so the thermal energy needed to fuse the ice is

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6 0
3 years ago
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Harrizon [31]

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In an ordinary ECG, there's three particular waves. The primary wave is the P wave, which speaks to the depolarization of the atria. This happens directly before the atria agreement and drive blood into the ventricles. The following wave is known as the QRS wave.

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VladimirAG [237]

Answer:

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Explanation:

4 0
3 years ago
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