PLS HELP FOR PHYSICS

The answer is the second option, Light is both a particle and a wave.

Explanation:

The first option is incorrect because Light and electrons aren't the same thing, One of the main reasons why is that particles of light which are called photons do not have any mass, while electrons have a negligible mass, but they still have some mass.

Both the third and fourth options are incorrect because Light is both a particle and a wave and they're not mutually exclusive as light behaves like a wave on some experiments and light behaves like a particle in some experiments.

Extra knowledge:

In my opinion, you could almost say that Light is kind of like Schrodinger's cat, if you place a cat inside the radioactive chamber until you open the chamber you would not know that whether the cat is dead or alive, so technically the cat is both dead and alive.

In the same way Light behaves as a wave and a particle and you won't be able to find out which unless you conduct an experiment.

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

you can cut your hand off if your not