10- B
08
20.67
4
5
Time seconds)
In the graph, which two regions show the particle undergoing zero acceleration and negative acceleration respectively
CA BC shows zero acceleration, and AB shows negative acceleration
Св. AB shows zero acceleration and CD shows negative acceleration
CCBC shows zero acceleration, and CD shows negative acceleration
D. AB shows zero acceleration, and BC shows negative acceleration

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.

може ли да зареждате повече информация, моля

i think it's letter a.