I need help with these if yall could please helpp a girl out cause I took this test 1 time nd boii- when i tell you I failed that I mean by I got a 0% on thatt Imao but anyways here are the pictures if yall could please helppp me ! There is more but I will guess on the other ones if yall help me :)

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg