5. a man walks at 5 km/h in the direction of a 20 km/h wind. if raindrops fall vertically at 7 km/h in still air, determine direction in which the drops appear to fall with respect to the man.

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.

search it up!

explanation:

a.   mass number from atomic number