Why are insulating materials low-density (light-weight) materials?
What will be an ideal response?
The insulating materials are lightweight because most of their volume is occupied by air or gas. The fibrous insulating materials have air trapped in spaces between the fibers. In non-fibrous materials, the air or gas is trapped within pores.
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A simple dynamometer that uses friction is called a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
What do you think lay at the root of the Watergate scandal? Who was responsible? Explain why it ballooned into a national crisis.
What will be an ideal response?
The current required to run the AC motor flows through the thermal overload heater and bimetallic switch contacts
Indicate whether the statement is true or false
In order to hold a 4? pipe for cutting, you would need a _____
A) bench vise B) chain vise C) C-clamp D) strap wrench