Mark each statement as to whether it pertains to electromagnetic waves, mechanical waves, all waves, or no waves (false). Group of answer choices wavelength and frequency are directly related [ Choose ] require a medium to travel [ Choose ] can travel through empty space [ Choose ] energy is shown in the amplitude [ Choose ] Matter is never transported, only energy is.

How does convection affect our atmosphere? our layers of earth? our oceans?

Which of the following changes to a pipe would increase the conductance by a factor of 12? 1.quadrupling the length and tripling the radius.2.reducing the length by a factor of and doubling the radius.3.tripling the length and reducing the radius by a factor of .4.reducing the length but a factor of and doubling the radius.

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.