Dc output of a r928 pmt a 400-nm dc light uniformly illuminates the photocathode of a hamamatsu r928 pmt. the photon irradiance is 10" photons per m' per s. the pmt is operated under iypicaldconditions. 12 question 1: what is the incident radiant power (in w) at the photocathode of the pmt?question 2: what is the resulting cathode current (in a)? answer question 3: what is the resulting anode current (in a)? answer question 4: it is desired that the anode current be reduced to 20 ha by decreasing the gain. what is the new gain setting and the corresponding supply voltage (in v)?

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.

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.