I’m going to order the list by ABCs
The ones I put down are correct
A
B
C
D
The number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.
Denoted by letter Z
Well you could drive stakes or piers down into the bedrock to anchor it, but you would still need to be cautious of erosion.
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 frequency of the signal is
Explanation:
The relationship between wavelength, speed and frequency of an electromagnetic wave is
where
is the speed of light
f is the frequency of the wave
is the wavelength
For the radio wave in this problem,
is the wavelength
So we can rewrite the equation to find the frequency:
Learn more about waves, frequency and wavelength:
brainly.com/question/5354733
brainly.com/question/9077368
#LearnwithBrainly