Una cuerda de violin vibra con una frecuencia fundamental de 435 Hz. Cual sera su frecuencia de vibracion si se le somete a una
1 answer:
You might be interested in
Answer:
Terminal velocity of object = 12.58 m/s
Explanation:
We know that the terminal velocity is attained when drag force and gravitational force are of the same magnitude.
Gravitational force = mg = 80 * 9.8 = 784 N
Drag force =
Equating both, we have
So v = 12.58 m/s or v = -15.58 m/s ( not possible)
So terminal velocity of object = 12.58 m/s
Answer:
a) Q = C*emf
b) Reduction in electric field strength and electric potential
c) Initial current through the resistor = emf/R
d) The final charge = K*C*emf
Explanation:
a) The resistors and capacitors are connected in series with the battery
Using Kirchoff's voltage law, sum of all voltages in the circuit is zero
Let = Voltage dropped across the Resistor
= Voltage dropped across the capacitor
Applying KVL;
.........................(1)
Since the connection is in series, the same current flow through the circuit
Putting and
into equation (1)
At the final charge, the capacitor in fully charged, and current drops to zero due to equilibrium
b) Current starts running through the plate because as the sheet of plastic is inserted between the plates both the electric field intensity and the electric potential reduces. The charge also reduces, then current flows
c) The current through the resistor is the current through the entire circuit ( series connection)
Putting the values of t and I₀ into the formula for I written above
d) NB: The initial charge on the capacitor = C * emf
The final charge will be: