"b. The nucleus is made of
protons and neutrons and has a positive charge" is the only option that is true about the atomic nucleus. The protons give it a positive charge.
A particle that is smaller than an atom or a cluster of particles.
8 miles per hour
because if it is moving at 4 miles every half hour that means you have to multiply it by two to get it in miles per hour and we all know that 4 times 2 is 8 so it would be 8 miles per hour =)
A pot of soup because metal is a better conductor of heat and it stores more heat as well. thermal energy is heat energy.