Work is defined as force*displacement so total d=8.5m and force will be 2kg*g which is roughly 20N of force so W = 20N*8.5m=170J
For part b the gravitational energy is m*g*h so gravitational energy = 200J since 2kg*10 m/s^2 *10m so the change since the work is 170 j means total change is 170J and 30J is left
Answer:
ionic
Explanation:
ionic bond is when a metal and nonmetal are bonded together
metallic bond is when a two metal are bonded
covalent is nonmetal and nonmetal bond or idk
