Identify one specific example each of mass and momentum transport in a mammalian system. briefly describe each example and identify the driving force and the resistance. in each example, identify a parameter that can change in value, how that parameter is likely to change, and the effects of that change on mass or momentum transfer in your example.

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass