A proton (charge e, mass mp), traveling perpendicular to a magnetic field, experiences the same force as an alpha particle (charge 2e, mass 4mp) which is also traveling perpendicular to the same field. The ratio of their speeds, vproton/valpha is:

The answer is going to be c

Iwould sure like to answer your question but i honestly just don’t know

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.