https://padlet.com/fkthang/tea1r8fh8iir7ldw en-us 2020-08-02 15:30:54 UTC 2020-08-21 04:21:53 UTC hello@padlet.com https://padlet.com/fkthang/tea1r8fh8iir7ldw/wish/673991683 Q7. Is the fuel positively charged by friction or negatively charged? The question said that the fuel becomes positively charged but the answer showed the fuel to be negatively charged instead.

]]> 2020-08-10 07:19:25 UTC https://padlet.com/fkthang/tea1r8fh8iir7ldw/wish/673991683 https://padlet.com/fkthang/tea1r8fh8iir7ldw/wish/673998890 Q9ci) Can heat loss from wire also be through convection? Since the wire is suspended in air, wouldn't convection currents be set up?]]> 2020-08-10 07:31:28 UTC https://padlet.com/fkthang/tea1r8fh8iir7ldw/wish/673998890