The correct choice is Buffers.
Buffers contains both acids and bases in equilibrium.when base is added to buffers, they adjust the pH value by releasing hydrogen ions.when acid is added to buffers, they adjust the pH value by consuming hydrogen ions. hence these substances resist any change in their pH value by releasing or absorbing hydrogen ions.This process keeps the pH value constant.
How many atoms are in something determines it "mass"
Think of it like a graph. You start at the origin which is (0,0). go three to the east which now you are (3,0). Then, six to the north. Now, you are at (3,6). 1 to the east, ((4,6). Then you go 4 to the west which is back tracking. So, you end at (0,6) which is saying you are now 6 km north from your campsite.
Hope this helps!
If there is no current in the wire .....the direction of magnetic field remains unchanged
Answer:
Explanation:
Given
Displacement is
of Amplitude
i.e.
, where A is maximum amplitude
Potential Energy is given by



Total Energy of SHM is given by
Total Energy=kinetic Energy+Potential Energy

Potential Energy is
th of Total Energy
Kinetic Energy is
of Total Energy
(c)Kinetic Energy is 

