4 An electric lightbulb operates for 1 hour and 15 minutes. What is the total time the
bulb operates in seconds? * m
(10 Points)
4.5x 10-1s
4.5 x 10-15
4.5× 10² s
4.5 x 10²5
4.5 x 10's

Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe