Devonshire Street telescopes how are earths telescopes that’s all me Siri you are I go to the store area
Answer:
My best guess would be B due to the fact of friction in a simple machine
Angular speed :
ω = D/t
D - rotational distance traveled, D = 2 π · 5.5 = 11 π
ω = 11π/3 rad / s ≈ 11.513 rad/s
Answer:
Speed, u = 29.4 m/s
Explanation:
Given that, A ball thrown straight up climbs for 3.0 sec before falling, t = 3 s
Let u is speed with which the ball is thrown up. When the ball falls, v = 0
Using first equation of motion as :
v = u + at
Here, a = -g
So, u = g × t

u = 29.4 m/s
So, the speed with which the ball was thrown is 29.4 m/s. Hence, this is the required solution.
Answer:
so you know the units in the problem and answer are the same, if they aren't you have to convert them to the same units.