ws (b) (i) State the formula linking moment, force and perpendicular distance from the pivot, (ii) The weight of the metal block is 0.68 N. Show that the moment of the weight of the metal block about point P is approximately 2.9 Ncm. (iii) Force F is applied to the metal block to stop it from moving. Calculate the magnitude of force F.

Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object

(science)study the following ocean currents map. an ocean currents map is shown. on the map the locations for san diego, california and savannah, georgia are marked. there is a looping current from the north past san diego and a looping current from the south near savannah which statement is most likely correct about the average temperatures in san diego, california as compared to savannah, georgia? it is higher in savannah because of the cool ocean currents from the south. it is higher in savannah because of the warm ocean currents from the north. it is lower in san diego because of the warm ocean currents from the south. it is lower in san diego because of the cool ocean currents from the north.

Does heating a metal wire increase or decrease its electrical resistance? why?