A) gases particles are far apart
That seems like a statement more than a question. Where's the question?
Answer.
The road on the hills goes upward with the increasing length of the road.That's why we make a winding roads because it reduces the allover surface inclination in every portion of the road which is suitable for driving the vehicles.
Answer:
38.67 N
Explanation:
v = Final velocity = 40 m/s
u = Initial velocity
m = Mass of ball = 0.145kg
s = Displacement of ball = 3 m
Equation of motion

F=ma

∴ Average force that a baseball pitcher's hand exerts on the ball is 38.67 N
Answer:
a) v=23.9 m/s
b) R=2646 N
Explanation:
According to Newton's second law the net force at the top is given by
∑F=-m*ac
according to

∑F=
a).
To lose contact this means that R=0 so the final equation is


Solve to v



b).
v is the twice of part a so



Solve to Rm


