Identify each of the quantities below as either vector or scalar

75 km/h east

3.2m/s

18 m/s2 east

10 mi/h south

2nd answer 3.2m/s is a scalar l, all others are vectors.

Explanation:

In order to be considered as a vector a certain quantity must have both a magnitude and a direction.

The most common example is velocity. It has both magnitude and direction, like the 1st and the last answers.

The 3rd answer is an acceleration. It is also given with its direction. So we have to consider it also as a vector.

But 2nd answer has no direction mentioned, so it is considered as a scalar.

chemical properties of thing

i believe it is b. what was the cause of the big bang

hope this !