Agold wire has a cross-sectional area of 1.0 cm^2 and a resistivity of 2.8 × 10^-8 ω ∙ m at 20°c. how long would it have to be to have a resistance of 0.001 ω?

Abird sitting high in a tree is an example of what type of wnergy

In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.

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