PHYSICS 1250 Study Guide - Quiz Guide: Hydraulic Press, Paper Cup, Mechanical Equilibrium

• School: Ohio State University
• Department: Physics
• Course: PHYSICS 1250
• Professor: All

Document Summary

Start quiz 20 minutes before end of class. 2+2 ( - 0) - 0= ( 0+ )t |ar|=v2/r vt= r |at|= r fext=ma. 1 meter (m) = 3. 281 feet 1 mile = 5280 feet 1 hour =3600 seconds |g|=9. 80m/s2 g=6. 67x10-11nm2/kg2 circumference of circle =2 r area of circle= r2 d/dx(axn)=naxn-1 xmdx= xm+1/(m+1), m -1 d/d sin =cos d/d cos = -sin v=v0+at x-x0=v0t+ at2 v2=v0. = 0+ t - 0= 0t+ t2 2= 0 (ke)t= mv2 (ke)r= i 2 work=f d, power=dw/dt, P+ gy+ v2=constant a1v1=a2v2 b= gv helium=0. 179 kg/m3 air=1. 29 kg/m3. Problem 1) a paper cup is completely filled with milk. Your friend accidently on purpose punches a small hole in the cup 10 cm below its top. What is the initial velocity of the milk as it flows out of the hole: 1. 4/ms. Problem 2) a balloon is filled with 100 m3 of helium. Consider the mass of the balloon to be negligible: 18 kg.