Is larger and thus more stable.
has not
slicy and
federal
010 10.0 points
there are three naturally occurring isotopes
of magnesium: 22mg, 22 mg, and 12mg. in
a weird parallel universe, the percentages of
these isotopes are
privacy
magnesium
isotopes
24 mg
natural
abundance
45.1%
13.4%
41.5%
25 mg
29 mg
03
20.179
ment with
- 20.
20
you can assume the masses are equal to the
mass number. calculate the weight of “nat-
urally” occurring magnesium in this weird
parallel universe.
answer in units of g/mol. your answer
must be within + 0.015%
equal to

5.66 seconds from when the rock was thrown. first construct an expression to represent the distance from the water to the rock. first account for the starting distance. d = 43 + ? now add in the distance based upon the initial velocity d = 43 + 21t + ? now add in the acceleration due to gravity d = 43 + 21t - 0.5at^2 now substitute the known values into the formula. 5 = 43 + 21t - 0.5*9.8*t^2 subtract 5 from both sides and perform the multiplication 0 = 38 + 21t - 4.9t^2 we now have a quadratic function with a=-4.9, b=21, c=38. using the quadratic formula, we can find the solutions at t = 5.66 and t=-1.37 since the negative time doesn't make sense, the correct value will be t = 5.66 seconds.