Recent content by kari82

Thank you so much! So my correct equation will be: ρ(block)V(block)=ρ(oil)0.542Vb + ρ(water)0.458Vb Thank you again! :)

mf(oil)g + mf(water)g ?

I cant.. And that was the main reason why I'm pretty sure I'm missing something. When I tried to include water into my calculations I was getting that the density of the oil is less than 1, which it does not make sense. What I assumed was that the m(block)=m(oil displaced) and the...

Thank you so much for your help!

A rectangular block of solid carbon (graphite) floats at the interface of two immiscible liquids. The bottom liquid is a relatively heavy lubricating oil, and the top liquid is water. Of the total block volume, 54.2% is immersed in the oil and the balance in the water. In a separate experiment...

A chemical Reaction A-->B is carried out in a closed vessel. The following data are taken for the concentration of A, Ca (g/L), as a function of time, t(min), from the start of the reaction. A proposed reaction mechanism predicts that Ca and t should be related by the expression ln...

In a certain binary-star system, each star has the same mass as our Sun, and they revolve about their center of mass. The distance between them is the same as the distance between Earth and the Sun. What is their period of revolution in years? T^2=(4pi^2/GM)*r^3 I know that the mass of the sun...

Block 1 has mass m1 = 460g, block 2 has mass m2 = 500g, and the pulley, which is mounted on a horizontal axle with negligible friction, has radius R = 5.00cm. When released from rest, block 2 falls 75.0 cm in 5.00 s without the cord slipping on the pulley. (a) What is the magnitude of the...

thank you so much!

thanks!

0 to pi/12?

I was wondering where did you get 2 from.. Thanks! I'll try that..

Thanks! Is that the function i need to use? When I put that in my calculator from 0 to 2 still doesn't give me any of the answers.. :-( what am i doing wrong??

I'm not able to get any of the multiple choice answers. Please help. a force of 1100 lb compresses a spring from its natural length of 17in to a length of 14in. How much work is done in compressing it from 14in to 9in? a)4600 b)0.075 c)10000 d)20000 What i did was F(x)=kx => 1100=3k...

I'm pretty lost with this problem. Can someone please help me with this question? Thanks! Find the volume of the solid generated by revolving the region about the given line The region in the first quadrant bounded above by the line y=1, below by the curve y=√(sin6x), and on the left by the...