We can answer this one very quickly. From the <em>Law of Conservation of Energy</em>, we know that "Energy can't be created or destroyed.".
So that only leaves us one way to complete the sentence in this question:
"One form of energy can be <em>transformed into</em> another type of energy.
" <em>(B)</em>
Answer:
C) Contact
Explanation:
The magnet requires almost direct <u>contact</u> with the fridge to start its magnetic properties.
Answer:
Three (3).
Explanation:
The octet rule is a rule in chemistry that states that, chemical elements would either gain or loss electrons in their outermost shell in order to attain a stable electronic configuration i.e having eight (8) valence electrons in their outermost shell such as chemical elements found in group 8 (2-8-8) known as noble gas.
A phosphorus atom needs to gain three (3) electrons to achieve a full octet because the atomic number of phosphorus is 15 and as such it has the electronic configuration of 2-8-5 and needs three electron in order to become a stable element.
Answer:
Explanation:
Let 
be % of 
at time 
(time in minutes).
Amount of in room=Volume of room 
Rate of change of in room=Volume of room x 
Rate of inflow of =
Rate of outflow
Therefore rate of change of is 
% rate of change is
Therefore we have:
Integrate both:
In
In
Raise both sides to base 
,
Initially, there's only 0.25% of ,
Now substitute 
and 
