Hurry !
using iupac nomenclature, give the name of these acids - h2s and h2so4.
a) hydrosulfuric acid and sulfuric acid, respectively
b) hydrosulfide acid and sulfurous acid, respectively
c) sulfuric acid and hydrosulfuric acid, respectively
d) dihydrogen sulfide acid and dihydrogen sulfide tetraoxide acid, respectively

Arock is dropped from a cliff and reaches the ground in 2.70s. at the same time another rock is thrown horizontally from the same height with initial x velocity of 0.95 m/s. what distance will in x will the second rock cover?

What is the momentum of a 2 kg object moving at 15 meters per second

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.