You are searching for a connector to add between a battery and a light bulb. you should select a material that has the ability to (2 points) resist electron flow. resist proton flow. accept neutron flow. accept electron flow.

When we have to connect a battery to light then we required a material that will help to conduct electricity from battery to the bulb

Here we can say that it must be a material that will always help to conduct the free charge.

Here as we know that electricity the flow of charge from one end to other

here the free charge is considered as free electrons

So the correct answer must be the material here must accept the electron flow so that on connecting them bulb will glow.

Here neutron flow is not relevant as neutron is not helpful to flow the the current

and if material will resist the flow of electrons or protons then it will resist the flow of current so it should not be the answer as well.

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s