Solve the problem. Express your answer in scientific notation, and round to one decimal place.
-The sun radiates energy into space at the rate of $3.9 \times 10 ^ { 26 }$ joules per second. How many joules are emitted in two weeks?
A) $4.7 \times 10 ^ { 26 }$ joules
B) $4.7 \times 10 ^ { 50 }$ joules
C) $4.7 \times 10 ^ { 32 }$ joules
D) $4.7 \times 1044$ joules

Question

Quizplus · Accepted Answer

First, calculate the total seconds in two weeks: $2 \times 7 \times 24 \times 60 \times 60 = 1,209,600$ seconds. Then, multiply this by the rate of energy emission: $3.9 \times 10^{26} \times 1,209,600 = 4.71564 \times 10^{32}$ joules, which rounds to $4.7 \times 10^{32}$ joules.

Solve the Problem 3.9×10263.9 \times 10 ^ { 26 }3.9×1026 Joules Per Second

Solve the Problem $3.9 \times 10 ^ { 26 }$ Joules Per Second