Doubling which quantity would cause the largest increase in a spring’s elastic potential energy?

potential energy is maximum when streach distance of string is doubled

Explanation:

we know that elastic potential energy of a spring is given as

..................(1)

here k is spring constant

and x is stretched distance of spring

if we double the spring constant then potential energy will be given as

...............(2)

similarly if we double the stretch distance then potential energy in spring will be given as

.............(3)

from equation 2 and equation 3 it is clear that

it means potential energy is maximum when stretch distance of string is doubled

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explanation:

he went to the supermarket with your dad

  1.the balanced   chemical equation is as below

cu +   2 ag(no)₃ → cu(no₃)₂   +2 ag

2.the   much silver   produced   is   50.9 g

step 1: find the   moles of cu

moles =   mass÷   molar mass

  from periodic table the molar mass of cu = 63.5 g/mol

moles is therefore = 15.00 g÷ 63.5 g/mol = 0.236   moles

step 2: use the mole ratio to determine the   moles of ag

from equation above   cu: ag   is 1: 2

therefore the moles of ag   =0.236   moles   x 2/1 =0.472   moles

step 3: find the mass   of ag

mass = moles x molar mass

from periodic table   the molar mass of ag =107.87 g/mol

mass   = 0.472   moles x 107.87 g/mol = 50.9 g

3.   the   much   silver   collected worth is   1.797 oz

  convert   50.9 g   to oz

that is   1 gram = 0.0353 oz

          50.9 grams =?   oz

by cross multiplication

={(50.9 grams x 0.0353 oz) / 1   gram}   =1.797 oz