Four identical metal plates are painted either black or white and have either a dull or shiny surface. They are heated to the same temperature.

Which plate radiates thermal energy at the greatest?

A. the plate that is dull and black

B. the plate that is dull and white

C. the plate that is shiny and black

D. the plate that is shiny and white

we need answer choices

where are the vectors ?

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.