A ball has a momentum of 24.5 kg. m/s to the right. Another ball has a momentum of 11.5 kg-m/s to the left.
What's the total momentum of the two balls after they have a
collision?

Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?

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

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?