F(of spring)=230x=ma=3.5(5)=17.5=230x; x=0.07m.
In order to find total magnification of a microscope, you need to multiply the power of eyepiece and objective lens.
Hope this helps!
Im pretty sure its C- Wavelength
C. Gamma rays have more energy than infrared rays
Not 100% but i think it'll cause the earth to rotate slightly slower, its definitely not the last one though