ចំនុចរូបធាតុមួយចរពាក់កណ្តាលដំបូងនៃច ម្ងាយចររបស់វាដោយល្បឿនប, = 2 m/s ហើយកំណាត់ផ្លូវ ដែលនៅសល់ វាចរដោយល្បឿន I = 3 m/s ដោយប្រើពាក់កណ្តាលដំបូងនៃរយៈពេលសរុបល ើកំណាត់ផ្លូវ
និងពាក់កណ្តាលចុងក្រោយដោយល្បឿន 4 = 5 m/s ។
នេះ:​

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )

i need the answer to this too but idk it ; -;

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

3.2x10^7