John rode his bike down the street to the east. He rode 100 meters in 25 seconds. What was his velocity?
A. 0.25 m/s east
B. 25 m/s east
C. 10 m/s east
D. 4 m/s east

The answer is D.

Explanation:

Given that velocity also applies speed formula, S = D ÷ T where D represents distance and T is time :

S = D ÷ T

S = 100m ÷ 25s

S = 4m/s

V = 4m/s east

The difference between speed and velocity is that speed has only magnitude but velocity has magnitude and direction.

a. a clone will be physically identical to the original, but won’t be genetically identical

have a good day!

when atmosphere interacts with biosphere they focuses on on the sources and sinks of green house gases (ghgs) air pollutants, particular matters, water and energy between the earth's surface and the atmosphere. the biosphere affects the climate. the atmosphere and biosphere are in constant interaction with each other, and all living things rely on gases in the atmosphere for life. organisms such as animals take in oxygen gas form the atmosphere to use in every cell of their body for smooth functioning of daily routine exercises.