To develop this problem it is necessary to apply the concepts related to the Dopler effect.
The equation is defined by
Where
= Approaching velocities
= Receding velocities
c = Speed of sound
v = Emitter speed
And
Therefore using the values given we can find the velocity through,
Assuming the ratio above, we can use any f_h and f_i with the ratio 2.4 to 1
Therefore the cars goes to 145.3m/s
(1,500 meters) x (1 sec/330 meters) =
(1,500 / 330) (meters-sec/meters) =
4.55 seconds
Pe = mgh.
14000 J = (40kg)(10m/s^2)(h)
h = 35 meters
I think it’s answer 1 to separate senators fr om the whims or the general public
The two poles of magnets must have equal and opposite strength so they cannot be separated
Hope it helps
