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Discover Questions

2 spheres of .02 and .04 m are at distance of .14 m with 40C charges each. Whats the force between them? Surface by rotating the arc y^2=9x from x=0 to 4 through 2π around x axis is 49π.Show that
x̄ of this surface is: 3/49*integral{x(4x+9)dx}? Match the graph of the function on the right with the graph of its derivative. image uploaded? Calculate ΔE, the system absorbs 7.29 kJ of heat from surroundings while its volume remains constant(assume that only P−V work can be done)? Calculate ΔE, if q= 0.764 kJ and w= -810 J .?