Answer:
864N (B)
Explanation:
Using newtons first law of motion: ∑F = 0
F(gravity) - F(applied) = 0
F(gravity) = F(applied) = 864N
C) electrical energy is transformed into heat energy
Mass = 1.2 kg = 1200 grams.
Volume = mass/density = 1200 cm3.
Hope this helps!
When the average kinetic energy of the molecules go up ( a rise in temperature) the average speed of the molecules increases, the molecules now on average have more kinetic energy .
