A girl holds the end of rope tied at the other end to a tree. The rope is making 3 waves.
Which statements describe the wave? Check all that apply.

~The wave is a mechanical wave.
~The wave is an electromagnetic wave.
~The wave moves energy through matter.
~The wave moves energy through space without matter.
~The wave transfers energy parallel to the motion of the wave.
~The wave transfers energy perpendicular to the motion of the wave.

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.