En un estudio de los efectos de un accidente sobre los ocupantes simulados de los dos vehículos que se muestran en la figura, el automóvil A de 1900 lb con velocidad VA = 30 mi/h choca con el automóvil B de 2800 lb con velocidad VB = 20 mi/h. El coeficiente de restitución del impacto es e= 0.15 y la duración de la colisión es de 0.22 s. determine la magnitud de la aceleración promedio a la que están sometidos los ocupantes de cada uno de los automóviles

In which scenario is the least amount of work done on a crate? a force of 120 n moves it 25 m. a force of 115 n moves it 26 m. a force of 130 n moves it 22 m. a force of 125 n moves it 27 m.

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.

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.