Consider the accuracy of recording muscle electrical activity using electrodes placed on the skin surface, compared to directly
1 answer:
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Answer:
0.80267 m
Explanation:
E(z) = Electric field = 1 µV/m
= 20 V/m
z = Depth
= Conductivity = 0.1 S/m
= 81
= Impedance of free space =
Frequency is given by
Parameter is given by
From the first equation
The depth is 0.80267 m
Answer:
0.00712 m
Explanation:
Given:
Charge on first particle (q₁) = 75 nC =
Charge on second particle (q₂) = 75 nC =
Force (F) = 1.00 N
Separation (d) = ?
The magnitude of force is given by Coulomb's law which states that, the magnitude of force acting between two charged particles separated by a distance is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them.
Therefore, the magnitude of force is given as:
Where, is the coulomb's constant.
Plug in the given values and solve for 'd'. This gives,
Therefore, the distance between the charges is 0.00712 m.
Explanation:
hopefully that makes sense. the position doesn't change over the 5 seconds, meaning it's stopped but time still continues. then when the slope is negative this shows the bear's position becoming negative (backing up, changing direction).
