Sally walks at a steady pace of 2.5 m/s for 5 seconds. Her friend, Heather, walks at a steady pace of 3 m/s for 5 seconds and Heather’s brother Myles runs at a pace of 6 m/s for 5 seconds. Make a graph and data table

Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells? burning fossil fuels contributes to climate change. burning fossil fuels takes place inside expensive fuel cells. fossil fuels aren't widely available, but pure hydrogen is. fossil fuels are nonrenewable.

Which of the following is not am example of a polymer? protein nylon kevlar concreta

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical