How are sound waves different then radio waves ??

Misconception Alert: Sound Waves vs.

However, sound and radio waves are completely different phenomena. Sound creates pressure variations (waves) in matter, such as air or water, or your eardrum. Conversely, radio waves are electromagnetic waves, like visible light, infrared, ultraviolet, X-rays, and gamma ray

Explanation:

ʜᴏᴡᴇᴠᴇʀ, ꜱᴏᴜɴᴅ ᴀɴᴅ ʀᴀᴅɪᴏ ᴡᴀᴠᴇꜱ ᴀʀᴇ ᴄᴏᴍᴘʟᴇᴛᴇʟʏ ᴅɪꜰꜰᴇʀᴇɴᴛ ᴘʜᴇɴᴏᴍᴇɴᴀ. ꜱᴏᴜɴᴅ ᴄʀᴇᴀᴛᴇꜱ ᴘʀᴇꜱꜱᴜʀᴇ ᴠᴀʀɪᴀᴛɪᴏɴꜱ ɪɴ ᴍᴀᴛᴛᴇʀ, ꜱᴜᴄʜ ᴀꜱ ᴀɪʀ ᴏʀ ᴡᴀᴛᴇʀ, ᴏʀ ʏᴏᴜʀ ᴇᴀʀᴅʀᴜᴍ. ᴄᴏɴᴠᴇʀꜱᴇʟʏ, ʀᴀᴅɪᴏ ᴡᴀᴠᴇꜱ ᴀʀᴇ ᴇʟᴇᴄᴛʀᴏᴍᴀɢɴᴇᴛɪᴄ ᴡᴀᴠᴇꜱ, ʟɪᴋᴇ ᴠɪꜱɪʙʟᴇ ʟɪɢʜᴛ, ɪɴꜰʀᴀʀᴇᴅ, ᴜʟᴛʀᴀᴠɪᴏʟᴇᴛ, x-ʀᴀʏꜱ, ᴀɴᴅ ɢᴀᴍᴍᴀ ʀᴀʏꜱ.

ʜᴏᴘᴇ ʏᴏᴜ ꜰᴏᴜɴᴅ ᴛʜɪꜱ ᴀɴꜱᴡᴇʀ ʜᴇʟᴘꜰᴜʟ! :)

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