Simplify the following:
(i)3(a4b3)10×5(a2b2)3 (ii)(2x−2y3)3 (iii)(4×107)(6×10−5)8×104(iv)4ab2(−5ab3)10a2b2 (v)(x2y2a2b3)n (vi)(a3n−9)6a2n−4
Rank the following velocities according to the kinetic energy a particle will have with each
velocity, greatest first: (i) →v=4^i+3^j (ii) →v=−4^i+3^j (iii) →v=−3^i+4^j (iv) →v=3^i−4^j (v) →v=5^i (vi) →v = 5ms at 30∘ to the horizontal.
Match the following: (i)Water(A)Compound(ii)Hydrogen(B)Element(iii) Salt(iv) Gold(v) Carbon dioxide(vi) Iron The correct pairs are: