To calculate the center of gravity, divide total weight distance moment by total mass of the system. Thus, the center of gravity is 13 meter from left-hand side.
Answer:it causes the moving object to slow eventually stop
Explanation:
The answer is True. You can speed up chemical reactions by using a recyclable substance called a reactant.
Answer:
Post indicator valve
Explanation:
Post Indicator Valves are commonly used to control the water flow of sprinkler systems used in public and private buildings, warehouses, and factories for fire suppression. PIVs control water flow from the public system into the building's fire suppression system.
Answer:
(i) 
(ii) 
Explanation:
Let t be the average thickness of the sheet.
Given that:
Density of the aluminum sheet is 
Mass of sheet = 60.7 g
Length of sheet = 50.0 cm
Width of sheet = 30.0 cm
(i) Using, Density=Mass/Volume


Hence, the volume of the sheet is
.
(ii) Now, as this aluminum sheet is in the shape of a cuboid, so the volume of the sheet is



Hence, the average thickness of the sheet is
.