The speed of light generally would be 300000km/s but since the train is moving in the same direction as the light it would apparently appear to be 100000km/s
Answer:
frequency is .167/s for this wave
FREQUENCY is the number of complete waves that pass a given point in a certain amount of time.
Good luck :)
The answer is TRUE, I'm pretty sure.
D=Vot+1/2at^2
Vot= 0 since there is no initial velocity in the y direction.
a=gravitational acceleration which is - 32 ft/s^2 in imperial units I believe.
She travels a distance of -2 miles, so
-2 miles= 1/2(-32ft/s^2)t^2
t= square root((- 4 miles)/(-32ft/s^2))
I don't know imperial units, but convert miles to feet then solve for t.
