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...
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...