Answer:
change in frequency is 636 Hz
Explanation:
given data
speed v1 = 36 m/s
speed v2 = 45 m/s
frequency f = 500 Hz
speed of sound s = 343 m/s
to find out
what is the change in frequency
solution
we know here change of frequency formula that is
frequency = 
(f) ...................1
put here value in equation 1
and we take v2 = -45 because opposite direction
frequency = 
(f)
frequency = 
(500)
frequency = 636
so change in frequency is 636 Hz
A. 4% you divide 2000 to 500 and you get 4 which is your answer
Work is defined as the amount of force done multiplied by the distance it was applied. Since it is already given that the object of interest (a box of groceries) was lifted up 1 meter by a force of 5 newtons, work done can be solved using the following formula:
Work = Force * distance
Work = 5 N * 1 meter
Work = 5 N*m = 5 J
The part of the ignition system that amplifies the electric
voltage is the coil as it is described to be something that is joined in a
shape of a spiral or rings in a specific machine or vehicle, amplifying
electricity.
The first on I think cuz its like if you were swinging a bag round and round with somthinig in it a you suddenly let go it would fly in the direction it's its heading when it's let go but idk man
