Problem: The filament of a light bulb has 1.67 C charge flowing through it in 2 s. Find: (a): Its average current. [0.835A] (b): The number of electrons (not the amount of charge in coulomb) that pass through its filament in 5 s. [2.62x1019 electrons]

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

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

answerscientific theory;

i think its d if wrong im sorry