A)After 3,5s -->v=v0+gt=21+(-9,8•3,5)=21+(-34,3)=-13,3m/s;
b)The maximum height that the orange reaches is h max=v0^2/2g=22,5m;v^2=sqrt(2gh)=>h=v^2/2g=9,025m.The height of the orange is H=h max-h=13,475m.;
c)The orange is traveling down.
False I think
Hope this helped ^^;
Answer: C
Period and wavelength
Explanation:
Mechanical wave requires a medium for it propagation transfering energy through a medium. The waves can move over long distances but limited due to the movement of the medium of the material causing the oscillating material not move far. This depends on the period and the wavelength of the wave.
b. the ability to do work.