Quick physics review
what is true about heat capacity and specific heat?

only heat capacity accounts for mass.

both heat capacity and specific heat account for mass.

neither specific heat nor heat capacity accounts for mass.

only specific heat accounts for mass.

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.