Answer:
d) When the diaphragm pushes upward, it decreases the volume of the lungs, pushing air out.
Explanation:
the relaxed diaphragm muscle is dome-shaped, the contracted muscle is horizontal.
Static friction opposes the movement of car from the state of rest.
Dynamic or kinetic friction opposes the movement of the car when car is running at any speed.
Answer:
108km/h
Explanation:
1km=1000m
3600s=1 hr
M/s= 3600/1000km/hr= 3.6km/hr
30m/s= 30×3.6km/hr = 108km/hr
Best Answer: BY v = u -gt
=>0 = 6 - 9.8 x t
=>t = 0.61 sec
Thus time it take to come back to hand (T) = 2t = 1.22 sec
Lol I hope this helps because I had funning helping you XD
