If you ride your bike at an average speed of 4 km/h and need to travel a total distance of 28 km,how long will it take you to re
2 answers:
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Answer:
Explanation:
<u>Density </u>
The density of a substance is the mass per unit volume. The density varies with temperature and pressure.
The formula to calculate the density of a substance of mass (m) and volume (V) is:
We have a cube-shaped piece of copper of 4 cm of side length. The volume of the piece is:
Surprisingly, no other magnitude is required, thus the answer is: