Average speed = (total distance covered) / (time to cover the distance)
Total distance = (77km + 66km) = 143 kilometers
Time to cover the distance = 2 hours
Average speed = (143 km) / (2 hours) = 71.5 km per hour
Because the elevator moves at a constant speed, it's in equilibrium and the net force acting on it is zero. Then the tension in the cable exactly equals the magnitude of the elevator's weight, which is
(3000 kg) (9.80 m/s²) = 29,400 N
When in the melting process particles start to move more freely when in the freezing process particles tend to slow and vibrate in place
Answer:
a) 
, b) 
Explanation:
a) The heat transfered to the egg is computed by the First Law of Thermodynamics:
b) The amount of entropy generation is determined by the Second Law of Thermodynamics:
It should be S since S stands for students. Giving the team with more members the upper hand. Hope this helps.
