Which of the following is the correct definition of mechanical energy?
2 answers:
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Answer:
R = 4.77 ohms
Explanation:
Four resistors are given such that,
R₁ = 2 ohms
R₂ = 3 ohms
R₃ = 5 ohms
R₄ = 10 ohms
Here, R₁ and R₂ in series. The equivalent is given by :
R₁₂ = R₁ + R₂
= 2 + 5
R₁₂ = 7 ohms
Similarly, R₃ and R₄ are in series. so,
R₃₄ = R₃ + R₄
= 10+5
R₃₄ = 15 ohms
Now, R₁₂ and R₃₄ are in parallel. So,
So, the equivalent resistance s 4.77 ohms.
Answer:
The time taken by to arrive on an area of
is
.
Explanation:
Given the intensity of the energy is
And the arriving energy is
Also, the area in which energy is being arriving is
Now, we will use relation between energy , intensity of energy
, area
and time
.
Where energy is in Joule, intensity is in , area is in
and time is in seconds.
The equation is
So, the time taken by to arrive on an area of
is
.