Answer:
W = Fd = 400(20) = 8000 J
Explanation:
<h2>
Answer:</h2>
327 degrees
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Answer:

Explanation:
Given that,
Mass, m = 27 grams
Volume of the substance, V = 15 cm³
We need to find the density of the substance. We know that, the density of an object is given by mass per unit volume. So,

So, the density of the substance is equal to
.
Sound moves faster in warmer temperature because the particles move faster