Answer: 7 km
Explanation: 12 minutes is 1/5 of an hour. 35/5=7
Answer:
Probably competition with television news-
by 1953 television was becoming common in many houses and people could obtain news from television newscasts
0.345 m.
<h3>Explanation</h3>
The wavelength is the distance that the wave travels in each cycle. The wave travels 345 meters in each second. Let the wavelength of this wave be
. That's the distance the wave travels in one cycle.
The frequency of the sound wave is 1 000 Hz, meaning that there are 1 000 cycles in each second. The wave travels a distance of 1 000 wavelengths in one second. That would be a distance of
.
From the speed of the wave, the wave travels 345 meters in one second. In other words,
.
.
To generalize:
,
where
wavelength of the wave,
the speed of the wave, and
the frequency of the wave.
Distance from the reference point
Answer:
Work
Explanation:
work is defined as the use of force to move an object. For work to be done, the force must be applied in the same direction that the object moves.