A copper wire has a diameter of 2.097 mm. What magnitude current flows when the drift velocity is 1.54 mm/s

For a particular reaction, ? h = -144.6 kj and ? s = -301.2 j/k. calculate ? g for this reaction at 298 k.

Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity