Answer:
The magnitude of the angular acceleration of the wheel is 14.53 rad/s².
Explanation:
The angular acceleration can be found by using the following equation:
(1)
Where:
: is the final angular velocity = 18 rad/s
: is the initial angular velocity
α: is the angular acceleration =?
Δθ = 19 rev*(2π/1 rev) = 119.4 rad
The initial angular velocity can be found knowing that the wheel turns through 19 revolutions during a 3 s time interval:
Where:
t: is the time = 3 s
By solving the above equation for ω₀ we have:
(2)
Now, by entering equation (2) into (1) we have:
By solving the above equation for "α" we have:
α = -14.53
The minus sign means that the wheel is decelerating.
Hence, the angular acceleration of the wheel is -14.53 rad/s².
I hope it helps you!
Answer:
Total time= 2.56 s
Explanation:
Given that
So distance = 386242560 m
Velocity of light
We know that
Distance = velocity x time
Now by putting then values
t=1.28 s
So the total time = 2 x 1.28
total time= 2.56 s
Answer: Honestly miss im not sure but i am pretty sure it is The HYDROSPHERE AND THE GEOSPEHER. I figured it out. Pls give me brainlest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Explanation:
E, B, C# minor and A for the most songs
If you mean what types of measurements are used to measure in outer space, I believe it’s light-year, astronomical unit and intergalactic measurements, but I’m not completely sure.
Hopefully this helps...
