The velocity of a car is 108 km h-1 what is the velocity in units of ms -1

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

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 diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?