Question
Solder is a silver metal used to hold pipes together when the solder is heated it melts and acts as a type of metal glue. Mrs. Hanley heats a piece of solder until it melts between two pipes what best identifies the point at which a physical change first takes place?
A) when the solder melts
B) when the solder cools down
C) when the solder is a soft metal
D) when the solder becomes solid again
Answer:
The correct answer is A)
Explanation:
The question is a good one. It asks to know when the PHYSICAL change first takes place. It means that it is possible to have changes to the Solder that is not immediately visible to the eye.
When any object is heated, its molecules vibrate even faster causing the bonds holding them to expand. This invariably leads to an expansion of the object. In the case of metals, metals when heated to a degree can actually become liquid.
The solder in this case has expanded before it melts. The melting is however easy to see more than the expansion of the molecules that make up the metal.
Metals when they melt do not assume the shape they were prior. When they cool off, they become as strong as they were before thus the binding quality of the solder in this case. However, they can only take the shape of the container they are poured into or the shape they were melted into if it was not containerized.
Cheers
Answer:
I already know joe biden is going to win i see it on the chart when i looked up how the election was going
Explanation:
Answer:
Option A. Mr White's wife and son first react to the story about the monkey's paw by expressing how they both <u>do not believe it is magical</u>.
Explanation:
"The Monkey's Paw" is a supernatural short-story written by author W.W. Jacobs that was first published in 1902. It tell the story of the White family, and a guest they receive at their house, Sergeant Major Morris. After Mr. Morris tells the Whites about the Monkey's paw he has brought them from India and how it has the ability to grant its owner with three wishes, Mrs. White and her son expresses how they don't believe it is magical and how it is most likely just a hoax.
An allegory is a story that uses characters and settings as symbols that carry a deeper meaning beyond the obvious meaning of the story. Which excerptfrom Nathaniel Hawthorne’s "Dr. Heidegger's Experiment" best reveals the allegorical nature of this short story?
<span>d) With a shuddering impulse, that showed her a woman still, the widow clasped her skinny hands before her face, and wished that the coffin-lid were over it, since it could be no longer beautiful.</span>
