Sound waves travel through the air to your eardrum
Answer : A. Decreases to 
Explanation :
We know the relation between speed, wave length and frequency
If the wavelength is tripled, while the speed of the wave is held constant the the frequency will decreases to
So, the frequency will be decreases to
The equation given in the question is
<span>h(t)= -16t^2+144
When the height becomes zero, then
- 16t^2 + 144 = 0
16t^2 = 144
(4t)^2 = (12)^2
4t = 12
t = 3
From the above deduction, it can be easily concluded that the correct option among all the options that are given in the question is the fourth option or option "D". I hope that this is the answer that has actually come to your desired help.</span>
Two ways that strong nuclear and weak nuclear forces are alike: Strong nuclear and weak nuclear their alike because they deal with atoms and subatomic particles. ... Two ways that electromagnetic force and gravity are alike: Electromagnetic force and gravity are alike because both of them has an infinity force.
<h3>
Answer: 7.74 newtons</h3>
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Steps Shown:
Work = Force*Displacement
Power = Work/Time
Power = (Force*Displacement)/Time
900 W = (F*1000 m)/(8.6 sec)
900 = (F*1000)/8.6
900*8.6 = 1000F
7740 = 1000F
1000F = 7740
F = 7740/1000
F = 7.74 newtons
