What is the element in group 13, period 3?

Which materials, including polystyrenes, can be recycled? polymers thermoplastics ceramics composites

What changes depending on location in the universe, mass or weight. Explain

If the mathematical operation of division is performed on two numbers, the numerator having the units Joule-seconds (J-s) and the denominator having the units kilogram meter per second (kg m/s).

Which structure's primary function is to warm and moisten the air? a. nasal cavity b. epiglottis c. bronchus d. bronchiole

If the Sun were twice as massive, its pull on Mars would be A. unchanged. B. twice. C. half. D. four times as much.

Through which type of material does sound tend to travel at the highest speed? A. Sound travels at the same speed in every material B. Solids D. Liquids

How does a low pressure system determine the weather in an area?

Molecules at room temperature move freely. What happens to the molecules when heat is removed until it freezes? Molecules group together Molecules slow down and contract Molecules speed up and expand Molecules move freely

A spring is used in a lab. It is vibrated at different frequencies and the wavelength is recorded. Using the graph of the data, what is the relationship found between frequency and wavelength? A) Frequency and wavelength are inversely related.

How do you describe the frequency of waves perceived by the observer from the moment the source appears to the moment it disappears?