Tidal influence is proportional to the mass of a disturbing body and is inversely proportional to the cube of its distance. some astrologers claim that your destiny is determined by the influence of the planets that are above the horizon at the moment of your birth.

compute the ratio of the tidal influence of the doctor delivering a baby (mass = 85.00 kg, distance = 1 m) to the tidal influence of mercury (mass = 3.30×1023 kg, distance = 9.2×1010 m). for this calculation, we are assuming that the planet is at its closest point to earth.

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.

Describe the forces both attractive and repulsive that occur as two atoms move closer together.

Which method would be best to separate a mixture of sand and gravel