He deflections (you will need to define a non-dimensional number  = EI/kL3 characterizing the stiffness of the spring) for various values of the spring stiffness. Plot also the variation of the deflection of the end of the beam (x=L) as a function of  Comment on your results (for example what happens when the spring becomes stiff? What happens when k tends to zero?). Finally, plot (in a non-dimensional way) the moment distribution along the beam. Find the expression of the axial stress along the bottom side of the beam, assuming that the cross section is rectangular and is defined by - a / 2 £ y £ a / 2 ; -b /2 £ z £ b/s.

The plum pudding model of the atom state that ?

A3.9 g aluminum foil ball with a charge of +4.1×10−9 c is suspended on a string in a uniform horizontal e⃗ field. the string deviates to the right and makes an angle of 30∘ with the vertical. part a part complete what information about the e⃗ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of e⃗ only the direction of e⃗ both the magnitude and the direction of e⃗ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you

Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?