Answer: I would have to say the living room needs to be cleaned- because a robotic vacuum cleaner.
• Also It could be possible for a hockey player to use bungee cords to keep tension on his/her arms while practicing his/her shot to strengthen it.
Answer:
30 N
Explanation:
Data:
The net force is the difference in the forces on the box. Suppose the box was being pulled by a force of 60 N and the frictional force was 30 N. The net force would be given as:

= 60 - 30
= 30 N
Answer:
Explanation:because it is in a nice enviroment and hydro electricity contains a lot of elemant