The distance between the 3rd and 6th nodes (3 sections) on a standing wave of a tuning fork is 82 cm. If the frequency of the waves is 32Hz,
what is the temperature in the room?

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

Ascientific blank must be testable and capable of being proven false?