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04.11.2020 •
Chemistry
10. Haley the hummingbird can fly from a pansy flower to a hibiscus flower 20 meters away in 5 seconds. What is her speed?
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Ответ:
4
Explanation:
Speed=Distance/time, so 20/5 divide time divided by distance. so the answer is 4.
Ответ:
Given:
Mass of an object, m = 5.0 g
Volume of the object, V = 45.0 g/cm3
To determine:
The density of the object
Explanation:
Density of a given object is the ratio of its mass to the volume
i.e. Density = mass /volume = 5.0 g/45.0 cm⁻³ = 0.111 g/cm³
Ans: thus the density of the object is 0.111 g/cm³