The Ancient Roman economy did not make use of
2 answers:
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Answer:
Ro = 7.8 [g/cm³]
Explanation:
According to the principle of Archimedes, the volume of a body immersed in a liquid is equal to the volume displaced by water. That is, in this problem The displacement volume is equal to the new volume minus the original volume.
We now know that density is defined as the relationship between mass and volume.
where:
Ro = density [g/cm³]
m = mass = 78 [g]
Vd = displacement volume [cm³]
Answer:
Explanation:
u = 4.0i−2.0j+3.0k v = −2.0i−2.0j+5.0k
Average acceleration is given by
The magnitude is
The magnitude is
The angle is
The angle between and the positive direction of the x axis is