Jack tries to place a magnet on the door of his refrigerator. he observes that the magnets don't stick. he guesses that the door of the refrigerator is made of non magnetic substance. what stages of scientific investigation does his guess represent?

Acube has a volume of 2011 cubic inches. what is the angle measure between a side of a cube and its interior diagonal?

What can be found in every skeletal muscle? a. nerves, bones, cartilage, and connective tissue b. tendons, cartilage, nerves, and blood vessels c. muscle fibers, nerves, connective tissue, and blood vessels d. tendons, nerves, blood vessels, and bones

Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.