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a 1kW laser is focused down to 1 cm^ 2 and runs for 10s. What is the energy delivered over time? a. 10 kJ b.

a 1kW laser is focused down to 1 cm^ 2 and runs for 10s. What is the energy delivered over time? a. 10 kJ b. 1x10^7 kJ c. 10000 kJ d. 1x10^6 kJ

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