Answer:
Hot (A)
Explanation:
because there are electrons going through there, the friction between the metallic nuclei and electrons creates vibrations known as heat.
if you touch it the electrons will run through your body and caus damadge.
Answer:
C. Protons are positive, neutrons are neutral, and electrons are negative
We have that the block is moving horizontally. Hence, its potential energy due to gravity stays the same. The only change in its mechanical energy is the one due to the change of speed. This reduction of its kinetic energy, due to the conservation of energy, is equal to the work that friction does. We have that at A the kinetic energy is : K=1/2*m*u^2=10*10*10/2=500J. At B, we have that K=1/2*10*16=80J. Sine we have that the initial value is 500, the work from the friction force (opposite to the movement of the object) is 80-500=420J.
Balance. acids and bases counteract each other on the PH scale.
