what is the true answer in this question ⁉️ practicing performance tasks by yourself and/or with friends (yes or no)

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

What are the starting materials for nuclear fission? two small nuclei two large nuclei a neutron and a large nucleus a neutron and a small nucleus

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of