The graph below shows the force on an object of mass M as a function of time. For the time interval 0 to 4 s, the total change in the momentum of the object is - -Change in p = 0kgm/s
-Change in p = -20kgm/s
-Indeterminable unless the mass is known
-Change in p = 40kgm/s

Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.