Answer:
The density of gold is of 18 grams per cm3.
Explanation:
The mass density of a homogeneous material expresses how much mass of that material is present in a given volume. Since the density of an object is obtained by dividing its mass by its volume, to obtain the density of gold, its 90 grams of mass must be divided by its 5 cm3 volume, performing the following calculation:
90/5 = X
18 = X
Thus, the density of gold is 18 grams per cm3.
Answer:
a. the bottom medium
Explanation:
it has the least index of refraction and hence most rarer.
The answer should be 2times3.14 which equals 6.28
Answer:
Magnetic force
Explanation:
Because a paper clip is type of a metal and magnets and paper clip get pulled to each other.
