Which of the Materials are insulators? (select all that apply)

a. Mechanical Pencil lead
b. Glass
c. Iron
d. Silver
e. Wood
f. Brass
g. Plastic
h. Copper
I. Yarn

Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.

Ain is , is 's of ? 0.62 0.79 1.27 1.50

One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.