A plane travels at a constant speed of 250 m/s as it flies once around a horizontal circle whose radius is 2542m. a) how long does it take to fly around the circle one ?

b) If the speed were to double, what would happen to the acceleration that the plane experiences ?

c) What is the current value of the acceleration that the plane experiences?

d) if possible, find the net force acting on the plane during this turn. If it’s not possible, what information are we missing?

Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !

What is the speed of an object at a given moment?