When xavier places his hands near a light bulb, he notices that certain areas around the light bulb are warmer than others. which best explains this?
the areas to the sides of the light bulb are warmest because of conduction.
the areas to the sides of the light bulb are warmest because of convection.
the area directly above the light bulb is warmest because of conduction.
the area directly above the light bulb is warmest because of convection.

coil wire, increase current, put iron inside the coil

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