Answer:
The hydrogen bonds that form when water freezes into ice allow the molecules to be spaced farther apart, thus making them take more space, decreasing the overall density and making it float in the water.
The uses of fossil fuel causes:
- <em>A</em><em>l</em><em>l</em><em> </em><em>o</em><em>f</em><em> </em><em>t</em><em>h</em><em>e</em><em> </em><em>a</em><em>b</em><em>o</em><em>v</em><em>e</em>
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Answer:
Explanation:
easy way
when system is all kinetic energy, velocity is at a maximum
E = ½mv²
v = √(2E/m) = √(2(25)/0.5) = √100 = 10 m/s
harder way
ω = √(k/m) = √(80/0.5) = √160 rad/s
When the system is entirely spring potential, the amplitude A is
E = ½kA²
A = √(2E/k) = √(2(25)/80) = 0.790569... = 0.79 m
maximum velocity is ωΑ = 0.79√160 = 10 m/s
The rms value of current is0.414A, and the maximum value of current is 0.585A.
To find the answer, we have to study about the capacitive reactance.
<h3>How to find the rms and maximum value of current?</h3>
- We have the expression for rms value of current as,
where; Xc is the capacitive reactance of the circuit.
- We have the capacitive reactance as,
- Thus, the value of rms current will be,
- Thus, the maximum value of current will be,
Thus, we can conclude that, the rms value of current is0.414A, and the maximum value of current is 0.585A.
Learn more about the capacitive reactance here:
brainly.com/question/27853857
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