Answer:
0
Explanation:
a significant figure is any number then is more than 0 before a decimal place
Answer:
A) 7500[N]
Explanation:
This is a problem where we have to apply the pascal principle, in this case replace the given values in the given equation:
F1 = 2500 [N]
A1 = 0.06 [m^2]
A2 = 0.18 [m^2]
![F_{2}=A_{2}*\frac{F_{1}}{A_{1}} \\F_{2}=0.18*\frac{2500}{0.06}\\ F_{2}= 7500[N]](https://tex.z-dn.net/?f=F_%7B2%7D%3DA_%7B2%7D%2A%5Cfrac%7BF_%7B1%7D%7D%7BA_%7B1%7D%7D%20%5C%5CF_%7B2%7D%3D0.18%2A%5Cfrac%7B2500%7D%7B0.06%7D%5C%5C%20F_%7B2%7D%3D%207500%5BN%5D)
C) Acceleration is the rate of change of velocity of an object. Velocity is the speed and direction of an object so acceleration is used to describe the rate of change. I hope this helps!!
Answer:
Fe - Element
Fe2O3 - Compound
Explanation:
From the given chemical formula for two substances, Fe and Fe2O3, Fe is an element while fe2O3 is a compound.
It is so because an element is consist of the same type of atoms while a compund is consist of different atoms under specific proportions. for example: Fe is an element while fe2O3 is a compound.
Hence, the correct answer is:
Fe - Element
Fe2O3 - Compound
