here we will use the torque balance about the knee joint
here we can say that

here torque due to weight is given as



now torque due to applied force of muscle


now by torque balance we will have


so here the magnitude of m will be 173 N
I'm sorry but I don't see anything that says part B
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Answer:
capacitance of the capacitor = 0.18 μ F
Explanation:
Area of the plate A = 0.063 m x 5.4 m = 0.3402 m²
distance between the plate d = 3.5 × 10–5 m
dielectric value for Teflon K = 2.1
capacitance of capacitor = ?
Formula for capacitance of parallel plate is as follows ,
(Where
)
putting the values in the equation,
C =
=0.18 μ F
It help protect you from coming out the car when you are in a accident
Work done against gravity to climb upwards is always stored in the form of gravitational potential energy
so we can say

here h = vertical height raised
so here we know that

here we have

now from above equation


so work done will be given by above value