Suppose you take a whole apple pie (because pie is better than cake!!) How do the shape, taste, and the weight of the whole pie compare with the shape, taste, and weight of all the slices together?

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?

What is special about a dc circuit ?

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?