What instrument is used to measure wind speed?

By definition is an Anemometer

Explanation:

There are several types of anemometers, the most basic consist of a series of cups, organized to capture the wind and spin attached to an axel. Actually there are other types of anemometers consisting of a fan, and electrical circuits to measure the speed of rotation.

An anemoter is a fundamental equipment in any meteorological station.

this means that the temperature of both substances will be equal

1.195000

explanation:

total mass=0.0117+0.0137+0.0881+0.0111

total mass= 0.01172kg

total velocity = 0.283-0.743+0.871-0.799+0.155+0.637+0.301=0.102

momentum=mv=0.1172*0.102=1.195000//