i think it goes fall the down winter and then the other seasons
Answer:
10m/s
Explanation:
the speed of the ball is equal to the value of the momentum of the bullet divided by the mass of the ball
Answer:
Explanation:
As given, the student has three balloons and rubs two of them on a piece of wool. The rubbing of balloon on wool is the independent variable as it was done on two and not on the third as control.
Think of it like a graph. You start at the origin which is (0,0). go three to the east which now you are (3,0). Then, six to the north. Now, you are at (3,6). 1 to the east, ((4,6). Then you go 4 to the west which is back tracking. So, you end at (0,6) which is saying you are now 6 km north from your campsite.
Hope this helps!
Answer:
339.12 m/s, 343.31 m/s
Explanation:
For main rotor
diameter, d = 14.4 m
radius, r = 7.2 m
f = 450 rev/min = 450 / 60 = 7.5 rps
Angular speed, ω = 2 x π x f = 2 x 3.14 x 7.5 = 47.1 rad/s
linear speed, v = r x ω = 7.2 x 47.1 = 339.12 m/s
For tail rotor
diameter, d = 1.6 m
radius, r = 0.8 m
f = 4100 rev/min = 4100 / 60 = 68.33 rps
Angular speed, ω = 2 x π x f = 2 x 3.14 x 68.33 = 429.13 rad/s
linear speed, v = r x ω = 0.8 x 429.13 = 343.31 m/s