Answer:
1000 Kilograms
Explanation:
Force is equal to mass times acceleration so if the force is 3000 and the acceleration is 3 m/s^2 then all you need to do to find the mass is divide 3000 by 3 which gives you 1000
Assuming our "closed tube" is closed at only one end, then
<span> v = fλ = f*4L/n
</span><span> where "n" is the harmonic number. So
</span><span> L = nv / 4f = n*346m/s / 4*256Hz = n*0.38 m
</span> <span>Since the only option in your list that is an integer multiple of 0.38 m is 1.35 m
</span><span> I'd say that we're hearing the fourth harmonic.
answer is
</span><span>A. 1.35 m</span><span>
</span>
Answer:work done can be calculated by the following formula;
Explanation:
Answer:
Explanation:
Amplitude is the distance between the neutral line and either extreme.
Wavelength is the distance from a point on one wave to the equivalent point on the next wave.
The radio waves move at the speed of light:
, and they cover a distance of
to reach the people, so the time they take to cover this distance is
Instead, the sound waves move at speed of sound: v=350 m/s and they cover a distance of S=3.6 m, so the time they take to reach the people is
Therefore, the difference in time between the two messages is