Answer:
I can only explain using the formula
Explanation:
v=f
v is velocity
f is frequency
lamda is wavelength ( I don't have the symbol)
therefore velocity is the product of frequency and wavelength
And since period is the inverse of frequency;
Period (T)=1/f
so we can have v=lamda/T
That's what I think
Answer:
A battery is a device that stores chemical energy and converts it to electrical energy.
The chemical reactions in a battery involve the flow of electrons from one material (electrode) to another, through an external circuit.
The flow of electrons provides an electric current that can be used to do work.
To balance the flow of electrons, charged ions also flow through an electrolyte solution that is in contact with both electrodes.
Different electrodes and electrolytes produce different chemical reactions that affect how the battery works, how much energy it can store and its voltage.
C. Electrical current increases as resistance decreases
Answer:
3 Amperes
Explanation:
This is an example of a parallel and series resistor. The first set of resistors are in parallel(the 6 and 3 ohms).
The total resistance of these two resistors can be solved through the following formula:
*This is for any resistors in parallel
Plugging in the numbers, we find that an equivalent resistor has a resistance of 2 ohms. Adding this to the 4 ohms, we get that there a total of 6 ohms of resistance with the resistors in this circuit.
Using Ohms law:
I = V/R
I = 18 V/ 6 Ohms
I = 3 Amperes.
I think the answer is proton