Afoam square has a mass of 62 g and a volume of 72 cm3. what is the density?

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

Suppose astronomers built a 140-meter telescope. how much greater would its light-collecting area be than that of the 10-meter keck telescope? express your answer using two sign

Atorque acting on an object tends to produce a. equilibrium b. rotation c. linear motion d. velocity e. a center of gravity