Asap.

1.) how does energy travel in a mechanical wave?

2.)what type of wave requires a medium to travel through?

3.)what is the wavelength of a wave?

4.) what is an example of a mechanical wave?

This graph gives information on changes in sea ice extent in the arctic ocean over a 30-year span. the overall trend shows in the ice extent. to address the trend, scientists need to ask themselves, one direct consequence of the trend is that

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what