The functions of angles are used to find unknown lengths or angles that can't be measured, in terms of known quantities. The trig functions of angles are ratios of lengths, so they're bare naked numbers without units.
Average <u>speed</u> = (distance covered) / (time to cover the distance) =
(5m) / (15 sec) =
(5/15) (m/s) = <em>1/3 m/s</em> .
Average <u>velocity</u> =
(displacement) / (time spent traveling) in the direction of the displacement
Average velocity = (5m) / (15 sec) left =
(5/15) / (m/sec) left =
<em>1/3 m/s left</em>.
A number without a direction is a speed, not a velocity.
Comes in pairs
Just like in Newton’s 3rd law, there is always an equal and opposite force
Answer:
3 m
Explanation:
It is given that,
The wavelength of a sound wave is 3 m.
We need to find the distance from a compression center to the adjacent rarefaction.
We know that, sound is a longitudinal wave. It travels in the form of compression and rarefaction.
Also, the distance between compression center to the adjacent rarefaction centre is called wave. Hence, the required answer is 3 m.
