Acar travels 20 km west, then 20 km south. what is the magnitude of its displacement?
a) 0 km
b) 20 km
c) 28 km
d) 40 km

The magnitude of its displacement of the car is 28 km.                

Explanation:

It is given that,

Distance covered by the car due west,

Distance covered by the car due south,

We need to find the magnitude of its displacement. Let it is given by d. We know that displacement of an object is equivalent to the shortest path traveled. It can be calculated as :

d = 28.28 km

or

d = 28 km

So, the magnitude of its displacement is 20 km. Hence, the correct option is  (c).

explanation:

earth's surface is mainly heated by the absorption of infrared radiation from the sun.

evaporation occurs because molecules in liquid water are warmed ( usually by the sun) and vibrate quicker, becoming less dense and rise.

condensation occurs because molecules in water vapor are cooled and therefore vibrate more slowly thus becoming more dense and eventually fall to earth.

lines of equal barometric pressure on a weather map are called: isobars : lines of equal temp on a weather map are called: isotherms.​

a person with a mass of 106kg has a weight of 1060n