The best statement best describes rutherford‘s model of the atom? a. it is like an avocado with the pit representing the nucleus b. it is like an aquarium with swimming fish representing positive charges. c. it is like a fried egg with the yolk representing the nucleus d. it is like a huge stadium with post obelisks charged marble at the center.

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

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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