Recent content by Superdreamer

Please Help! nasty vector question The diagonals of a plane quadrilateral ABCD intersect at O,and X,Y are the midpoints of the diagonals AC,BD respectively.Show that The shape is not regular the top and bottom are different lengths as can be the sides 1) BA + BC= 2BX Got this part by proving...

Hi I was wondering if someone could tell me if I am heading in the right direction with these Thanks in advance Q1 In an experiment on standing waves, a string 90 cm long is attached to the prong of an electrically driven tuning fork that oscillates perpendicular to the length of the string...

I am unsure about some of my formulae and answers I would be very grateful if someone could clarify these please Q1 The insulating layer on the inner wall of a building is made from a compound layer of laminated board (inner) and styrofoam (outer). The thickness of the board is 0.02 m and...

I am required to plot a graph of l(1+L^2/12l^2) on the x-axis and T^2 on the y axis.The graph must be a straight line through the origin.I got the following values for the l values on the x-axis .57,.47,.37,.27,.17 and corresponding values of T^2 2.46,2.52,2.56,3.24,8.12.As you can see my values...

Hi i was wondering if anyone could help me with the following problems please,I'm a bit confused! Q1. A 9.4 kg projectile is fired vertically upwards. Air drag dissipates 68 kJ during its ascent. How much higher would it have gone were air drag negligible? Here I used the formula mgh and...