The speed of the wave in water is 833.33 m/s
The given parameters;
- depth of the wrecked ship, d = 1000 m
- frequency of the wave transmitted, f = 50 kHz
- time of motion of the echo, t = 2.4 s
The speed of the wave in water is calculated by applying echo equation as shown below;
Thus, the speed of the wave in water is 833.33 m/s
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She performed a lot of work
Reason : Speed of Sound is more than the train approaching
Answer:
18.15 m/s
Explanation:
Radius of the loop, R = 23 m.
Weight of the rider, w= 760 N.
Mass of the rider, m = w/g = 77.5 kg
Apparent weight at the top of the loop is 350 N.
At the top: