Answer:
Here we go!
Explanation:
if an object is traveling in such a way that it covers the same distance for each interval of time it is traveling, then it is said to be traveling with uniform speed.
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The correct option from given choices is 2, that is 0.24 m
We can find this by using the following formula;
ln A = ln Ao - kt
Ao = 0.30
k = 0.080 min⁻¹
t = 2..6 min
<span>ln A = ln 0.30 - (0.080 min</span>⁻¹<span>) (2.6 min) </span>
<span>ln A = -1.412 </span>
<span>A = 0.24 m</span>
Answer
The current is 0.83 amps .
Option (C) is correct .
Explanation :
Formula for parallel resistors
As given
A combined circuit has two resistors in parallel (10.0 ohms and 14.0 ohms) .
Putting all the values in the above
L.C.M of (10,14) = 70
As given
Another resistors in the series is 5.0 ohms .
Formula
Now by using the ohms law .
Where V is voltage , R is resistance and I is current .
As given
The power source is 9.0 volts .
V = 9 volts
Putting values in ohms law
I = 0.83 amps (Approx)
Therefore the current is 0.83 amps .
Option (C) is correct .
I think trace 1 is ac and trace 2 if dc but i’m not sure what will happen when a higher frequency is added?