A mass m1 = 1.0kg weighs one -sixth as much on the surface of the moon as on the earth. calculate the mass, m2 of the moon .the radius of the moon is 1.738×10^6m.

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth's center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

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