Answer:
Explanation:
The resistors in a unbalanced wheat stone bridge cannot be treated as a combination of series and parallel combination of resistors.
In case of balanced wheat stone bridge, the resistors can be treated as the combination of series and parallel combination.
Here, In the balanced wheat stone bridge
R1 and R2 be in series and Ra and Rx is series and then their combination is in parallel combination.
Let V = the volume of the balloon
Force of gravity = V * ?hot * g downward
Buoyant force = V * ?cool * g upward
Net upward force F = V * ?cool * g - V * ?hot * g
F = V g (?cool - ?hot)
Mass of the balloon m = V ?hot
a = F/m = V g (?cool - ?hot)/(V ?hot)
a = g(?cool/?hot - 1)
a = 9.8(1.29/0.93 - 1)
a = 3.79 m/s^2
<span>Answer is 3.79 m/s^2</span>
Answer: They are identical brightness
Explanation:
If the lights are assumed to be resistance bulbs
Each light has the same current and will each drop one third of the supply voltage.
Answer:
Explanation:
The capacitance of the electrode is given by:
where
C is the capacitance
Q is the charge on the electrode
V is the potential difference
In this problem, we have
V = 9.0 V
Substituting into the equation, we find
(5 nF)
