A wave sent out from a source is reflected back to the source in 1.9x10^-3 seconds .if the velocity of the wave is 3.0x10^8 m/s, the distance of the reflecting surface from the source is ?
d=V*T = 3*10^8 * (1.9*10^-3/2) = 2.85*10^5 m.
To find the distance of the reflecting surface from the source, we can use the formula:
Distance = (Velocity × Time) / 2
Given:
Velocity = 3.0×10^8 m/s
Time = 1.9×10^(-3) seconds
Let's calculate the distance.
Distance = (3.0×10^8 m/s × 1.9×10^(-3) seconds) / 2
To simplify the calculation, we can use exponential notation:
Distance = (3.0 × 1.9 × 10^(8 + (-3))) / 2
Adding the exponents in the numerator:
Distance = (3.0 × 1.9 × 10^5) / 2
Multiplying the numbers in the numerator:
Distance = 5.7 × 10^5
Therefore, the distance of the reflecting surface from the source is 5.7 × 10^5 meters.