Yes,
It is because the speed of sound in solids is very higher than speed of sound in gasses(air). As the molecules present in the solids are very close to each other and transfer disturbance easily and quickly to other molecules. In gasses molecules are farther apart and require more time to travel. Hence speed of sound in gasses are lower than in solids.
Second reason '
AS velocity = V = square root [ elastic modulus /density ]
Gasses are more compressible and hence have smaller elastic modulus so have lower speed .
Explanation:
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Answer:
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<span>(a)
Taking the angle of the pitch, 37.5°, and the particle's initial velocity, 18.0 ms^-1, we get:
18.0*cos37.5 = v_x = 14.28 ms^-1, the projectile's horizontal component.
(b)
To much the same end do we derive the vertical component:
18.0*sin37.5 = v_y = 10.96 ms^-1
Which we then divide by acceleration, a_y, to derive the time till maximal displacement,
10.96/9.8 = 1.12 s
Finally, doubling this value should yield the particle's total time with r_y > 0
<span>2.24 s
I hope my answer has come to your help. Thank you for posting your question here in Brainly.
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