The net force on the system:
F = m₂g - m₁gsin(∅)
F = 39.5 x 9.81 - 43 x 9.81 x sin(30)
F = 176.58 N
Now, we use F = ma to find the acceleration on each mass.
F = m₁a₁
a₁ = 176.58 / 43
a₁ = 4.11 m/s²
F = m₂a₂
a₂ = 176.58 / 39.5
a₂ = 4.47 m/s²
The basic concept that needs to be understood is that sound travels faster through a dense medium. Now if we check the options given in the question, then they should be arranged in the manner given below.
1. <span>The sound waves in hot air.
2. </span><span>The sound waves in cold air.
3. </span>The sound <span>waves in water.
4. </span><span>The sound waves in steel.</span>
Answer:
The answer is: dense air exerts more pressure than less dense air.
Pressure is due to the weight of the above column of the substance which is a force resulting from its weight that is the product of its mass and gravitational pull. The denser the air and the grater the column, the larger its mass and hence the more the pressure it exerts.
I Hope It's Helpful
Hint The Brainliest :)
Explanation:
Answer:
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