Describe the energy transformations involved in the creation and burning of fossil fuels to produce electricity?

Explain why electric current cannot exist if a current doesn't have a voltage source.

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car

Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress. based on the graph, during what time is the velocity constant and positive?