Recent content by excel000

Homework Statement If the relative error of m is 1% and of h is .5%, what is the error of log(mh)? Homework Equations d/dx(lnx)=1/x, \deltalnx=\deltax/x The Attempt at a Solution \delta(ln0.43(mh))=\delta(0.43lnm + 0.43lnh) =\delta(0.43ln0.01 + 0.43ln0.005) =-4.26 i'm pretty...

Homework Statement 0.800 g of silver nitrate and 0.473 g of potassium bromate are added to 238 mL water. Solid silver bromate is formed, dried, and weighed. What is the mass, in g, of the precipitated silver bromate? (Be careful to enter the correct number of significant figures. Do not...

ok so using that velocity from above i subbed all the info into this equation v2^2 = v1^2 +2ad 16.67^2 = 50^2 +2(-2.45)d d=453m

ok so its like this? mpvp + mbvb = mv(barge and plane) 1000(50) + 0 = (1000+2000)v v= 16.67m/s

shouldnt the planes final velocity be 0? mpvp + mbvb = mpvp' + mbvb' 1000(50) + 0 = 0 + 2000vb' vb'=25m/s the equation says that the barge is moving forward

Homework Statement A 1000kg plane is trying to make a forced landing on the deck of a 2000kg barge at rest on the surface of a calm sea. The only frictional force to consider is between the plane's wheels and the deck, and this braking force is constant and equal to a quarter of the the...

yea, but i can only think of the tension force, i can't think of the opposite to that. how about the force applied by the hand and the tension force?

1. What are the action/reaction forces when twirling a rubber stopper attached to a string? How does circular motion illustrate Newton's first law? 2. F=ma 3. I thought about centripetal and centrifugal, but my teacher said centrifugal force isn't a real force.