Fig. 3.1 shows current flowing through a junction. Fig. 3.2 shows a closed loop. R I I E R Fig. 3.1 Fig. 3.2 (i)

a person with a mass of 106kg has a weight of 1060n

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

compass can be used day and night, cloudy or sunny

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19