Question

The Sankey diagrams below show the energy transfers in two light bulbs. The useful energy output for these light bulbs is carried to the energy stores of the environment by __________ . What is the missing word?

Answer 1

1$<marquee>A child is standing at the edge of a straight highway watching her grandparents' car driving away at a constant 21.6 m/s. The air is perfectly clear and steady, and after 11.5 minutes the car's two taillights (646 nm) appear to merge into one. Assuming the diameter of the child's pupils is 5.60 mm, calculate the width of the car.</marquee>$

$<marquee>thanks </maequee>$

Answer 2

Answer:   Through electricity.