Pleaseee help it’s due in 20 minutes the 500 series bullet train travels between Tokyo and hakata, Japan. If it is heading north with a momentum of 13,194,098.64 kg m / s at a velocity of 261.8 KM/H what is its mass

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.

A10-kg isto a of 10 m at aa0.9 kg/m.30 kg of ,at aas10-m .. ( 9.8 m/s2 g.)