What is the speed of a wave if the frequency is 30HZ and a wavelength is 0.1 0M? A-- 3,000 m/s B--3m/s C--30 m/s D--300 m/s

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

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

Avoltaic cell converts chemical energy to