A ball whose mass is 2 kg falls freely from position A as shown in the figure. When it reaches B, the kinetic energy of the ball is 2 times its potential energy. Calculate:(a). point B height from ground level! (b). Speed at point B (c). Speed the ball shortly before it reaches the floor (d). At what height does the ball reach the highest and lowest speeds (e). Mechanical energy at each point on the ball thanks

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.

What are the starting materials for nuclear fission? two small nuclei two large nuclei a neutron and a large nucleus a neutron and a small nucleus

How many atoms of nitrogen are in the chemical formula ni(w on