Answer:
Maximum possible voltage without shock across the thumb and index finger with a dry-skin = 33.88 V
Maximum possible voltage without shock across the thumb and index finger with a wet-skin = 0.135 V
Explanation:
From Ohm's law
V = IR
For the maximum possible voltage without shock for dry skin, the
R = 4.4 × 10⁵ Ω
I ≤ 77 μA
I ≤ 77 × 10⁻⁶ A
V ≤ 4.4 × 10⁵ × 77 × 10⁻⁶ = 33.88 V
For the maximum possible voltage without shock for dry skin, the
R = 1750 Ω
I ≤ 77 μA
I ≤ 77 × 10⁻⁶ A
V ≤ 1750 × 77 × 10⁻⁶ = 0.13475 V
I would say that it depends on the size of the animal and where it was hit. It is possible that a large animal could survive.
Answer:
See the answers below.
Explanation:
The total power of the circuit is equal to the sum of the powers of each lamp.
Now we have a voltage source equal to 240 [V], so by means of the following equation we can find the current circulating in the circuit.
where:
P = power [W]
V = voltage [V]
I = current [amp]
So this is the answer for c) I = 0.67 [amp]
We know that the voltage of each lamp is 240 [V]. Therefore using ohm's law which is equal to the product of resistance by current we can find the voltage of each lamp.
a)
where:
V = voltage [V]
I = current [amp]
R = resistance [ohms]
Therefore we replace this equation in the first to have the current as a function of the resistance and not the voltage.
b)
The effective resistance of a series circuit is equal to the sum of the resistors connected in series.
Answer:
number of electrons = 2.18*10^18 e
Explanation:
In order to calculate the number of electrons that move trough the second wire, you take into account one of the Kirchoff's laws. All the current that goes inside the junction, has to go out the junction.
Then, if you assume that the current of the wire 1 and 3 go inside the junction, then, all this current have to go out trough the second junction:
(1)
i1 = 0.40 A
i2 = 0.75 A
you solve the equation i3 from the equation (1):
Next, you take into account that 1A = 1C/s = 6.24*10^18
Then, you have:
The number of electrons that trough the wire 3 is 2.18*10^18 e/s
Answer:
3 m/s
Explanation:
Initial = Final
Mass * Velocity = Mass *Velocity
8000kg * 12m/s = (8000kg+ 24000kg) * (Final Velocity)
(96000 kgm/s) / (32000kg) = (Final Velocity)
Final Velocity = 3 m/s