Answer:
<h2>Jets leave white trails, or contrails, in their wakes for the same reason you can sometimes see your breath. The hot, humid exhaust from jet engines mixes with the atmosphere, which at high altitude is of much lower vapor pressure and temperature than the exhaust gas.</h2>
Explanation:
<h2>Hopes this helps. Mark as brainlest plz!</h2>
Answer:
work done on desk = m g h = 105 * 9.81 * 2.46 = 2534 Joules
Explanation:
so work in = 2534 / 0.875 = 2896 Joules
that is your 648 times distance your hand moved holding the rope
2896 = 648 * x
4.47 meters
I think maybe a typo, 648 N is too big, maybe 64.8 ? Any block and tackle system does better than that.
Must be isolated from the temperature of the gas
Answer:
Newton's Second Law
Explanation:
The scenario explained above could be best described by Newton's Second Law.
Newton's Second Law state that when a net force is acted on an object, the force will lead to the acceleration of that object, such that force is equal to momentum change per change in time.
Hence, as the runner pushes harder with her leg muscles and speeds up for the last few yards, the speed is directly proportional to the force with which it pushes her leg muscles.
