The real-time price of Brent crude oil is at $74.92 per barrel, and the price of WTI crude oil is at $71.26 per barrel. Oil prices are customarily quoted in dollars (USD) around the world, not only in ...

Free body diagrams do not need to be drawn to scale but it can sometimes be useful if they are. It is important to label each arrow to show the magnitude of the force it represents. The type of ...