<span>A. No sound is heard
A*sin(wt)+(-A)*sin(wt)=0 - no sound
</span>
Answer:
The height of the hill is, h = 38.42 m
Explanation:
Given,
The horizontal velocity of the soccer ball, Vx = 15 m/s
The range of the soccer ball, s = 42 m
The projectile projected from a height is given by the formula
S = Vx [Vy + √(Vy² + 2gh)] / g
Therefore,
h = S²g/2Vx² (Since Vy = 0)
Substituting the values
h = 42² x 9.8/ (2 x 15²)
= 38.42 m
Hence, the height of the hill is, h = 38.42 m
Answer:Dalton just expanded on the Greek idea of the atom.
Explanation:
Answer:
The SI unit for length is meters(m), for mass is kilograms(kg)
Explanation:
hope it helps
