Velocity is different from speed because velocity also includes: a. motion b. direction c. distance d. acceleration

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.

Earth's atmosphere is composed of mostly two gases. name the two gases that make up the majority of the atmosphere and use the pie chart to tell the percentages of each.

Acircular ring of charge with radius b has total charge q uniformly distributed around it. what is the magnitude of the electric field at the center of the ring? 0 keq/b2 keq2/b2 keq2/b none of these answers