Question 1131963
.
<pre>
The spring's constant k = {{{deltaF/deltaH}}} = {{{(g*delta_M)/deltaH}}} = {{{(10*(0.060-0.040))/(0.2205-0.2180)}}} = 80 Newtons/meter.


Let M be the mass of the scale pan (in kilograms).  Then you have this equation to find M


(M + 0.040)*g = 80*(0.2180 - 0.20).


M = {{{80*(0.2180 - 0.20)/g}}} - 0.040 = {{{80*(0.2180 - 0.20)/10}}} - 0.040 = 0.104 kilograms = 104 grams.    <U>ANSWER</U>
</pre>