Answer:
Eelas = 5 [J]
Explanation:
Elastic energy is associated with the ability that has a spring or any other material with elastic properties.
We can calculate the elastic energy by means of the following equation:
where:
k = constant spring = 2.5 [N/m]
x = distance stretched = 2 [m]
Answer:
I think its a fuse because everything else makes sense and is used in electrical circuits and the fuse is the only one that stands out to me ¯\_(ツ)_/¯
The answer is 30.
Explanation:
4m•(3)=12m
10•(3)=30
Answer:
Option D
X: positive
Y: positive
Explanation:
They repel each other so both the charged particles will have same charge.
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Answer:
B. a super-giant in spectral class K
Explanation:
The classification of stars are done on various characteristics like surface temperature, luminosity, spectral class etc. HR diagram is a plot which shows the relation between these characteristics of stars. One can also predict the life cycle of stars. When you plot the stars basis these characteristics on HR Diagram you can easily see that the stars with temperature lower than 4000K and brightness several thousand of that of the Sun will be a supergiant star.