[填空题]
The small piston of a hydraulic l+kpo ow-0kvf- tg)wl 4ift has a diameter of 8.0 cm, and its larg err-,eaj*jsbz n w/25e piston has a diameter of 40 cm. The lift raises a load of 5s,-brj r* zwe/2 aenj15,000 N. (a) Determine the force that must be applied to the small piston $N$ (fill in numerical value only) (b) Determine the pressure applied to the fluid in the lift $\times 10^5 \; Pa$ (fill in numerical value only)
