Answer:
yes
Explanation:
you will feel weary after shorter times
Compounds
Explanation:
A compound is a substance composed of two or more kinds of atoms or elements that are joined together in a definite grouping.
The properties of a compound are distinct and different from those of the individual elements that are combined in its make-up.
Compound are pure substances. Like all pure substances, they have the following properties:
- They are homogeneous in all their parts throughout.
- They have a definite composition.
- They cannot be separated by physical means.
- They have a unique set of physical properties.
Pure substance are elements and compounds
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Answer:
Explanation:
Given that height of the projectile as a function of time is
here we know that
h = 147 ft
so from above equation
now by solving above quadratic equation we know that
Answer:
The total amount of heat needed will be .
Explanation:
We will divide the calculation in two: First, the heat needed to melt the ice, and then the heat needed to warm the resulting liquid from 0°C to 37°C.
<em>i) </em>The fusion heat will be:
<em>ii)</em> The heat needed to warm the water from to will be:
So, the total amount needed will be the sum of these two results:
.