Question $7$

$2\mathrm{.}5$ pts

$61$

If we double only the mass of a vibrating ideal mass$-$and$-$spring system, the mechanical energy of the system

increases by a factor of $4$

does not change.

increases by a factor of $\sqrt[\phantom{2}]{2}$

increases by a factor of $2.$

increases by a factor of $3.$