If point A is the initial point of one vector but terminal point of other vector then vectors are a) Parallel Vector
b) Antiparallel Vector

Please explain.

Aquantity of gas has a volume of 1.5 m3 and an absolute pressure of 95 kpa. when the gas is compressed to a volume of 0.5 m3, what is the new absolute pressure of the gas? (assume that there’s no change in temperature.)

Afigure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 20.9 12000 200 3.33

Is the portion of the electromagnetic spectrum that has a frequency just above that of visible light.