A cart is moving on a track in the positive x-direction. A force acting parallel to x-axis is excreted on the chart. The chart shows the net force excreted on the chart as a function of displacement. As the cart travels from x=0m to x=4m, what is the net change in kinetic energy of the cart

From the graph the speed of the snail in the first 20 seconds centimeter/second. after that, the snail remains in the same place for seconds

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 an example of units for speed