Amotorcycle weighs 2,009 newtons. the mass of the motorcycle is kilograms. use g = 9.8 n/kg for gravity.

We Know, W=mg, m=W/g

2009 N / 9.8 N/Kg = 205 Kg.

- measure reactants precisely. ( first choice)

- stir to the reaction take place. ( second choice)

- wait patiently until the reaction completes. ( fourth choice)

- make sure to recover as much copper as possible. ( last choice)

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.