Suppose a diode consists of a cylindrical cathode (negatively charged) with a radius of 6.2×10^-2 cm, mounted coaxially within a cylindrical anode (positively charged) with a radius of 0.558 cm. The potential difference between the anode and cathode is 335 V. An electron leaves the surface of the cathode with zero initial speed. Find its speed when it strikes the anode. Mass of an electron, me=9.1x10^(-31) kg.

b.

explanation:

10.0

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.

heats surface water up