Answer: A, to inform people of when, how, and why to wash their hands.
Explanation: in the poster it shows when you should wash your hands, how you should wash your hands, and why its important to wash your hands! Please give brainliest!
You can identify by:
a. boiling point
c. density.
Answer:
Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, radio and television broadcasting.
Answer:
Current, I = 1200 A
Explanation:
It is given that,
Length of the cylinder, l = 40 m
Radius of the metal wire, r = 4 mm = 0.004 m
Voltage source, V = 16 V
Resistivity of metal,
We know that the resistivity of any metal is given by the formula as :
R = 0.01336 ohms
Using ohm's law :
I = 1197.60 A
or
I = 1200 A
So, the current flowing in the cylindrical wire is 1200 A. Hence, this is the required solution.