A sphere Q1 with a charge of -2,5micro coulomb is placed 1m away from a second sphere Q2 with a charge of 6micro coulomb. The spheres lie on a straight line. Point P is located at a distance of 0,3m to the left of Q1 , while point X is located between Q1 and Q2 . Show with the aid of a vector diagram why the net electric field at point X cannot be zero.​

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

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

the answer is 12 as i may remember

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