As described in the problem introduction, a criterion for a dark band to appear at point P is that the phase difference between light arriving at point P from the top of the slit and light arriving at point P from the bottom of the slit equal 2π. What length of path difference d will give a phase difference of 2π?

answer: 0.20

explanation: this can only be the answew because all the other measuremnets are not close

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.

answeralert drivers who drift off the road;