A sound wave traveling through dry air has a frequency of 16hz a wavelength of 22 m and a speed of 350 m/s. when the sound wave passes through a cloud of methane its wavelength changes to 28 m while its frequency remains the same what is its new speed A. 448 m/s
B. 9800 m/s
C. 13 m/s
D. 350 m/s

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

did yall get answers for this yet