Answer:
Explanation:
We are given that
Frequency,f=
Speed,v=40.2 m/s
We have to find the increase in frequency.
We know that
Speed of light,c=
The waves are reflected therefore the change in frequency at the gun is equal to twice the change in frequency.
Therefore, increase in frequency=
non examples of temperature are dixionanon , fairinheat, cabrowskin, and lastly ancomthere
Answer:
its cognitive- behavioral psychology
hope u have a good day!! :)
We know, a = v/t
Here, a = 5 m/s²
v = 50 km/h= 13.88 m/s
Substitute their values into the expression:
5 = 13.88 / t
t = 13.88/5
t = 2.78 sec
Now, we know, v = d/t
13.88 = d/2.78
d = 13.88 * 2.78
d = 38.53 meter
In short, Your Answers would be:
i) It will take 2.78 sec
ii) It will travel for 38.53 m after a brakes applied.
Hope this helps!