the answer i think is asphalt and plastic
Answer:
the tension is 18513N
Explanation:
Given that
mass = 1683kg
acceleration = 1.2m/s^2
acceleration due to gravity = 9.8m/s^2
T-mg = ma
T = ma + mg
T = m(a +g)
T = 1683 kg(1.20 m/s2 + 9.8)
T = 1683 (11)
T = 18513N
therefore, the tension is 18513N
The answer to this question is C. The reason why this is an incorrect statement is that the Doppler effect takes into account two moving objects. In this scenario, both the source and the listener are stationary to the frequency of the sound waves will not change due to the Doppler effect. For the other answers, the frequency of sound waves is not affected by nature of the medium. The distance between a sound source and listener does not alter the frequency of the sound wave. The frequency of the sounds waves remains the same to the listener.
