The answer to the question is 2,000 J. Hope this helps!
The answer for this question is: C
I think some of the given is wrong, 10 ms-1, think it is only 10 s-1 which represents the frequency of the wave, and can be use to solve for the wavelength of the sound wave given
wavelength = wave speed / frequency
wavelength = 1500 m/s / 10 s-1
wavelength = 150 m ( 100 cm / 1 m ) = 15000 cm
Answer:
2160 km/h
Explanation:
720 times 3 gives you the answer
The reason as to why technicians shouldn’t use oxygen or
compressed air in pressurizing appliances in cases of checking leaks because
when this is mixed with the compressor oil or other refrigerants, this will
likely cause explosion because of the oxygen or compressed air mixed to it.
