Amotor expends a given amount of energy in a certain period of time. if twice the energy is expended in half the time, its power is:

Energy per unit of time is known as power

so here let say initial power is P in which energy E expended in time interval t

so we can say

now energy expended is double while it took half time

so new power expended will be

so here we can say that now the power expended will be 4 times the initial power

a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be?

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i don't understand is there any other way you can rephrase it plz let me know in the comments and i will do it.

explanation: