How does a fuse work? A. A material burns out when current is excessive

B. A material burns out when resistance is excessive

C. A material burns out when voltage is excessive

D. A material acts as a switch to prevent electricity from flowing when voltage is excessive

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?

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?