Which of them helps to do the work faster? Why?

The graph represents the distance a car travels over time while on the highway. which statement about the car's trip is accurate? a) the car does not move over time. b) the car travels at a constant velocity. c) the car's velocity increases constantly over time. d) the car's velocity decreases constantly over time.

What is the coefficient of kinetic friction μk between the block and the tabletop?

What structural formula represents 4 electrons shared between two atoms?