Magnesium chloride forms crystals. Which option is a description of this form of magnesium chloride?
A. A liquid made up of a highly organized set of particles
B. A solid made up of a highly organized set of particles
C. Magnesium and chlorine atoms
D. Ions arranged randomly

If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules