The hubble constant, $h_{0}$, is the ratio of the recessional velocity of a galaxy to its distance. the hubble constant is estimated to be 70 km/sec per million parsecs of distance. (one parsec is equal to 3.26 light years.) based on this ratio, how many billions of light years away would a galaxy be if it had a recessional velocity of 300,000 km/sec?

The items in the following list are all units of matter. which is the smallest unit that retains the properties of the matter? a.) atom b.) compound c.) electron d.) element

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?

Forms of meditation hail from which traditions a ) eastern traditions b ) western traditions c ) eastern and western traditions d ) neither eastern nor western traditions