Mt. Everest is 29,032 feet tall. Airplanes must be careful while flying around these peaks. If they fly at the wrong height they endanger the lives of the passengers and crew. What height
would be appropriate for
the pilots to fly at to ensure the safety of both passengers and crew?

A.8000m
B.8m
C.9km
D.9000km

e) none of the above answers are correct

the answer is kevlar

so easy. just google the electromagnetic waves and it’ll pop up.

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