A substance floats of it is less dense, or has less mass per liquid volume than other components than the mixture.
If an object is projected with vertical speed given as
now the time of flight of the object that time in which it comes back on ground
now here we will have
now the range of projectile is given as
now here we know that
now the range is given as
now in order to have maximum range we can say
so we will have
so now we can say
so both speed must be same to have maximum horizontal range
The instantaneous velocity is at a given instant in time while the average is calculated over the time interval of the entire journey. The instantaneous velocity can be determined by finding the gradient of the displacement/time graph while average velocity is given by total distance covered divided by total time taken.
So you know the speed of a wave, and speed is how much the wave moves per second. This wave travels 3x10^8 meters per second. So to find how for you traveled you need to know how many seconds the wave traveled for, 20 minutes is equal to 1200 seconds (times 20 minutes by 60). Then times the seconds by the speed (3x10^8 m/s)x(1200 s) = 3.6x10^11 meters
HCl would be the limiting factor... but idk of thats what youre looking for