This scene was rewritten , although its opening recitative in cut form was present in the first production .
This scene has been rewritten , although its opening recitative was present in cut form in the first production .

Are these two sentences paraphrases of each other?
yes

The kinetic energy of a particle is the sum of potential energy and total energy , this sum is also the frequent expression for the Hamilton operator in classical mechanics :
The total energy of a particle is the sum of kinetic energy and potential energy , this sum is also the frequent expression for the Hamiltonian in classical mechanics :

Are these two sentences paraphrases of each other?
no

Silver became the motor of the Spanish colonial economy both in Peru and in New Spain .
In both Peru and New Spain , silver became the engine of the Spanish colonial economy .

Are these two sentences paraphrases of each other?
yes

Where '' k '' , '' k '' , and '' k '' are the constants , one can obtain the three together to multiply .
Where '' k '' , '' k '' and '' k '' are the constants , you can multiply the three to obtain .

Are these two sentences paraphrases of each other?
no