Question

Course Home <Module 4 HW1 Problem 16.55 10 of 23 Constants Periodic Tabl A 1900 kg car moving at 60 km/h is brought to a sudden stop Part A If all the car's energy is dissipated in heating its four 5.8 kg steel brake disks, by how much do the disk temperatures increase? Express yor answer using two significant figures. IVO AED c ? AT = 3.07 K Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Next > Provide Feedback ENG 9:40 AM 7/31/2020 myct/itemView'assignmentProblemiD=135993982 P o

Answer 1

N mass of car 브 lgoo kg to kn/h 60 X 10 ans 60x60 3 ve lo m/s ملی Koko = £mve KE 181900 xlo X10 60X60 2.6388X205T 2 This kot change in heat ofor Break so des in one Break dll z 2.6388X10S 4. Costect = 468 J tgk So, des z mc dT dT = 2.63888 105 4 X 5.8 x 46% K dT 2 24.3K