ECZ Science Paper 1 GCE 2020 question B9

[@sambokomelody4585]

Wow I haven't learnt a lot through your RUclips channel thank you sir continue with your good work. please electro magnetism and CRO

[@sim-g9471]

💖🙏

[@mwiingatryson3102]

Wow that is nice lesson i really enjoy it

[@kayingaprisca1763]

Really having great revising with you Sir awesome continues what you are doing.

[@mercyngoi4137]

It's great revising with you sir. Go through moment

[@francisngoma6757]

Thanks alot mercy. But can you be more clear on the last phrase of your stentance

[@chabumubanga2791]

So helpful

[@mwiingatryson3102]

Please Sir may you go through on electromagnetic spectrum

[@francisngoma6757]

I will to do one or two

[@mosesjames301]

you are the best ...........😱

[@sim-g9471]

Thank you 🙏

[@stephentembo3914]

Gud

[@austinahshamankomba8540]

Thank you very much sir I appreciate

[@nicholaschitundu4934]

Thank you electric Field

[@sim-g9471]

Thank you

[@gershommuma386]

Sir isn't 53 suppose to reduce by 1 , please explain further I will appreciate if kindly reply immediately

[@francisngoma6757]

The 53 does not reduce because during beta decay a neutron is converted to a proton and because of this the number of protons (atomic number) increases but the mass number remains the same cause what is lost in neutron is gained in protons. For the negative 1 on e means a loss in mass of almost 1amu. Remember the mass of a proton is 1 but an election has a mass of 1/1849 which is almost zero (0)

[@belindakatenta9771]

Sir, you've stopped making lesson videos online

[@francisngoma6757]

I have not stopped making videos. What would you want the next video to be on

[@belindakatenta9771]

@francis ngoma i want 2019 gce science revision the full paper am really inspired my your teaching. When are you even starting the revisions you've been quite sir.

[@janephiri4440]

How to plot a graph of half life

[@marymutale1866]

Please let's go through chemical equations

[@sarahmpundu3463]

Please look at magnetism

[@kingschisangano9696]

Balance of equations

[@bwalyahbwalya3313]

Section c tomorrow

[@sambokomelody4585]

Magnetism