A uniform metre rule of mass 90g is provided at the 40cm mark. If the rule is in equilibrium with an unknown mass m placed at the 10cm mark and a 72g mass at the 70cm mark, determine M By: Sunday|Published on: May 23|Categories: Physics WAEC| 0 comments A. 72g B. 102g C. 298g D. 504g Correct Answer: Option B B. 102g Users Also Read These:A radioactive substance has a half-life of 3 days.…An object of mass 2 kg moves with a uniform speed of…If the molar mass of X(HCO3)2 is 162 g mol−1;…In the diagram above, AB represents a uniform rod of…A uniform solid cube material 10cm on each side of…SEE ALSO A progressive wave equation is represented by Y= a sin(150 Ï€t - Ï€x/4). if the phase difference of a progressive wave is 45°, the value of x in the equation is