Why are Cu, Al used over tungsten (W), Fe to make fuses?
A force of 5 N is used to displace a block by 5 m in the first case and by 2.5 m in the second case. If the work done is W and W’ respectively, the relation between W and W’ is
Question 127
Below u, v, w and x represent different integers, where u = (-4) and x ≠ 1. By using following equations, find each of the values u×v=u, x×w=w and u+x=w (a) v (b) w (c) x Expain your reason, using the properties of integers.