Asolution of formic acid (hcooh) has la ph of 3.13. what is the h+] concentration? what is the initial concentration of weak how many grams of formic acid are there in 100.0 ml of the -4 solution? (ka= 1.7 x 10") 7.4x104 m 4.0x10-3 1.8x10-20

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question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

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