Answer:
use a reusable source of energy such as hydro power
Explanation:
use renewable energy it saves the environment and does not create global warming
Answer:
Firstly the wet basis and dry basis are not the same. The wet basis involves measuments taken with consideration of the amount of moisture contained in a sample while in dry basis there is absence of water.
Explanation:
1gm water is 10^-3kg. g is about 10, actually 9.81.h = 2000 metres.GPE = mgh = 10(^-3)kgx10x2x(10^3) =n about 20 Joules ???using kinematic equation ... v^2=u^2+2as where drop starts at rest, u= 0.v=sqroot(2x10x2000) m/sv=sqrt (40 000)I may have got the zeros confused here, 'cos it looks as though it should come out as an "easy" number.This calculation assumes NO air resistance so that TERMINAL VELOCITY is not relevant.
That is because salt solutions contains Na+ and CI- ions When ions are present in the solution, these ions can move through the solution to carry an electric current. But sugar molecules DO NOT break down into ions when dissolved.
Answer:
The mammoth bone is 22726 years old.
Explanation:
We can find how hold is the mammoth bone using the decay equation:
(1)
Where:
N(t): is the quantity at time t = 6.25%N₀
N₀: is the initial quantity
λ: is the decay constant
First, we need to find λ:
Now, by solving equation (1) for t we have:
Therefore, the mammoth bone is 22726 years old.
I hope it helps you!