Answer:a) P = Po + rho×h×g
b) P = 5.4 × 10^9 pa
c) F = P/A = (Po + rho×h×g)/A
d) 1.174×10^11N
Explanation: Using the formula
P = Po + rho×h×g
P = 1.0 x 10^5 + 1000 × 5.5 × 9.81
P = 5.4 × 10^9pa
The magnitude of the force exerted by water on the top of the person's head F at the depth h in terms of P
F = P/A = (Po + rho×h×g)/A
Using the above formula
Where A = 0.046m^2
F = P/ A = 5.4×10^9/0.046
F = 1.174×10^11N
Answer:
66.2 sec
Explanation:
C₁ = 1.0 F
C₂ = 1.0 F
ΔV = Potential difference across the capacitor = 6.0 V
C = parallel combination of capacitors
Parallel combination of capacitors is given as
C = C₁ + C₂
C = 1.0 + 1.0
C = 2.0 F
R = resistance = 33 Ω
Time constant is given as
T = RC
T = 33 x 2
T = 66 sec
V₀ = initial potential difference across the combination = 6.0 Volts
V = final potential difference = 2.2 volts
Using the equation
![V = V_{o} e^{\frac{-t}{T}}](https://tex.z-dn.net/?f=V%20%3D%20V_%7Bo%7D%20e%5E%7B%5Cfrac%7B-t%7D%7BT%7D%7D)
![2.2 = 6 e^{\frac{-t}{66}}](https://tex.z-dn.net/?f=2.2%20%3D%206%20e%5E%7B%5Cfrac%7B-t%7D%7B66%7D%7D)
t = 66.2 sec
Answer:
7.2 as used in the equation