Recent content by Beginner@Phys

Are you sure? It rotates around an axle..that's why I thought it was a physical pendulum. See: http://session.masteringphysics.com/problemAsset/1070632/3/14.CP80.jpg

Homework Statement The figure shows a 230 g uniform rod pivoted at one end. The other end is attached to a horizontal spring. The spring is neither stretched nor compressed when the rod hangs straight down. K=3.0N/m and the length of the rod is 0.20m. What is the rod's oscillation period...

Homework Statement Evaluate the net force on a 200 -m high dam with a 60 mwater depth. Homework Equations P=F/A p(hydrostatic pressure)=rhogh+patm The Attempt at a Solution The atmospheric pressure acts on both the dam and the water, so it cancels out of the equation. g=9.8m/s^2...

Okay,thanks!

The picture is: http://session.masteringphysics.com/problemAsset/1011118/16/SFL_pl_5.jpg

Homework Statement Part A Consider a horizontal layer of the dam wall of thickness dx located a distance x above the reservoir floor. What is the magnitude of the force on this layer due to the water in the reservoir? Express your answer in terms of , x, dx, the magnitude of the...

Homework Statement Part A What is the pressure at a depth of 5000 in the ocean? Given rho_water=1,030 kg/m^3 pTotal=p_0 + rho*g*h=5.06×107 Part B What is the fractional volume change of seawater at this pressure? Given B=0.2*10^10 dV/v=p/-B =−2.53×10−2 Part...

Homework Statement Water stands at depth d behind a dam of width w . Find an expression for the net force of the water on the dam. Express your answer in terms of the variables w,d,p (density), and appropriate constants. Homework Equations P=F/A or pressure=Force/Area Hydrostatic...

Homework Statement Water flowing out of a 15.0mm -diameter faucet fills a 1.50 L bottle in 5.00s. At what distance below the faucet has the water stream narrowed to 10 mm in diameter? Homework Equations Bernoulli's equation: P_1+pgh+1/2pv^2=constant Q(volume flow rate)=vA Continuity...