Recent content by jelzap

Homework Statement The horizontal end points of the swing pendulum are 10 cm apart. What is the amplitude of the pendulum. Homework Equations v=f(lamda) The Attempt at a Solution

Homework Statement The floor of a basement in a house is 3.2m blow the grade of a window sill. If the Basement has flooded to a depth of 0.44m and the basement is 10.3m by 18.4m. If the water leaves the pipe at 2.4m/s, how much work was done by the pump. (Density of water is 1000 kg/m^3)...

well, i found the acceleration of the rock, i need to know what to do from there M(A)=Fnety M(A)= Fa+ Ff M(a)=-(18*9.8) + 129N 18a=(-176.4)+129 a=47.4 (what are the units here?) What do i do from here?

Homework Statement An 18kg rock is released under water. The fricitional Buyoyance add up to 129N How long will it take to fall 1.0m Homework Equations The Attempt at a Solution