Answer:
Crest: the top point of a wave
Trough: the lowest point of a wave
Wavelength: the distance from one crest to the next crest OR from one trough to the next trough
Amplitude: the distance the wave travels from the initial position (that would be that line in the middle) in either direction
static electricity and friction
a)The average acceleration of the car is
b) The distance travelled is 560 m
<u>Explanation:
</u>
a) Acceleration is defined as the rate of change in velocity per unit time. So it can be obtained by measuring the ratio of speed to time.
Since here the initial speed was zero and final speed is given as 28 m/s, then time is given as 20 s. So,
b) As the speed is given as 28 m/s, then
So the distance travelled is 560 m and average acceleration is .
Answer:
well I think that the thing that makes that world interesting is that it's full of colours of different people just like those molecules people in the world today have so many characteristics, trait e.t c well I think that somehow it happens but we do not take notice of all those things hope this helped