Answer:
1. Current in the circuit; 1.2 Amps
See attached image for the circuit.
2. Equivalent resistor = 3 Ω
I = 0.3 amps
Potential difference across the battery terminals is: 0.9 V
Explanation:
Part 1.
The internal resistance of 2 ohms is simply added to the circuit in series as shown in the attached image.
Since now we have two resistances in series (2 ohms and 3 ohms) the total of this series combination is 5 ohms. Using Ohm's law, we can derive the current running through the circuit:
Part 2.
Now we have a 1.5 V battery with a 2 ohm internal resistance, connected to two identical 6 ohm resistors.
a. The equivalent resistance presented by the two resistors in parallel:
b. Now the circuit can be represented by a 2 ohm resistor (internal battery resistance) plus a 3 ohm parallel equivalent resistor in series. That is a 5 ohm total resistance. Then Ohm's law becomes:
c. The potential difference across the battery terminals must be the battery's EMF minus the potential drop in its internal resistance:
The entropy of a system that has only a single microstate is always ZERO. In addition, a microstate or simply known as the "microscopic configuration of a thermodynamic system." This kind of configuration is significant because its phenomenon can easily be observed using experiments.
Answer:
Approximately , assuming that .
Explanation:
Let denote the time required for the package to reach the ground. Let and denote the initial and final height of this package.
.
For this package:
- Initial height: .
- Final height: (the package would be on the ground.)
Solve for , the time required for the package to reach the ground after being released.
.
.
Assume that the air resistance on this package is negligible. The horizontal ("forward") velocity of this package would be constant (supposedly at .) From calculations above, the package would travel forward at that speed for about . That corresponds to approximately:.
Hence, the package would land approximately in front of where the plane released the package.
Yes, the electromagnet still affects the compass needle.
(plato answer)
the answer is d they are essential to all ecosystems