Answer:
Red
Explanation:
I looked at the picture...where it says red is 700
The power dissipated is simply V^2/R
where V = 120 volts RMS
and R = 60 Ω
Answer:
0.06 Nm
Explanation:
mass of object, m = 3 kg
radius of gyration, k = 0.2 m
angular acceleration, α = 0.5 rad/s^2
Moment of inertia of the object
I = 3 x 0.2 x 0.2 = 0.12 kg m^2
The relaton between the torque and teh moment off inertia is
τ = I α
Wheree, τ is torque and α be the angular acceleration and I be the moemnt of inertia
τ = 0.12 x 0.5 = 0.06 Nm
A=pi r^2
A=( 3.14159.......)(12.77)^2
A= 512.30m^2
Answer: 9.09 seconds
Explanation:
Given that,
speed of sound = 330 m/s
Distance away = 3 km
(since the SI unit of distance is metres, convert 3km to metres
1km = 1000 metres
3km = (3 x 10000) = 3000 metres
Time it take for the sound to reach you = ?
Now, recall that speed is obtained by dividing distance travelled by the time taken.
i.e speed = distance / time
330 m/s = 3000 m / time
Time = 3000 m / 330 m/s
Time = 9.09 seconds
Thus, it will take 9.09 seconds for the sound to reach you.
