Answer:
13
Explanation:
13.0120481928 it is the distance
Answer:
Δt = 5.29 x 10⁻⁴ s = 0.529 ms
Explanation:
The simple formula of the distance covered in uniform motion can be used to find the interval between when the sound arrives at the right ear and the sound arrives at the left ear.
![\Delta s = v\Delta t\\\\\Delta t = \frac{\Delta s}{v}](https://tex.z-dn.net/?f=%5CDelta%20s%20%3D%20v%5CDelta%20t%5C%5C%5C%5C%5CDelta%20t%20%3D%20%5Cfrac%7B%5CDelta%20s%7D%7Bv%7D)
where,
Δt = required time interval = ?
Δs = distance between ears = 18 cm = 0.18 m
v = speed of sound = 340 m/s
Therefore,
![\Delta t = \frac{0.18\ m}{340\ m/s}](https://tex.z-dn.net/?f=%5CDelta%20t%20%3D%20%5Cfrac%7B0.18%5C%20m%7D%7B340%5C%20m%2Fs%7D)
<u>Δt = 5.29 x 10⁻⁴ s = 0.529 ms</u>
For electrical devices . . .
Power dissipated = (voltage) x (current) =
(12 V) x (3.0 A) = 36 watts .
1 watt means 1 joule per second
(36 joule/sec) x (60 sec/min) x (10 min) = 21,600 joules
Answer:Electoral Vote
Explanation:i did it before