Many caterpillars construct cocoons from silk, one of the strongest naturally occurring materials known. each thread is typically 2.0 μm in diameter, and the silk has a young's modulus of 4.0×109 n/m2. assuming that there is no appreciable space between the parallel strands, how many strands would be needed to make a rope 8.8 m long that would stretch only 1.02 cm when supporting a pair of 85-kg mountain climbers? = strands again assuming that there is no appreciable space between the parallel strands, what would be the diameter of the rope?

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.​

i would say

answercollision;

answeralert drivers who drift off the road;