Ayouth organization is having its annual pinewood model car race. the unpowered cars, like the one shown below, are lined up at the top of a hill and ready to begin. what gives the cars their potential energy? a. their speed b. friction c. gravity d. their wheels reset submit
Answers: 1
Physics, 22.06.2019 09:00
Sobre transformações cíclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cíclica é nula; ii – o trabalho, em uma transformação cíclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cíclica é, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocórica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
Answers: 1
Physics, 22.06.2019 09:40
When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.
Answers: 1
Physics, 22.06.2019 14:30
Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?
Answers: 3
Ayouth organization is having its annual pinewood model car race. the unpowered cars, like the one s...
History, 16.12.2020 15:30
Mathematics, 16.12.2020 15:30
English, 16.12.2020 15:30
Mathematics, 16.12.2020 15:30
Mathematics, 16.12.2020 15:30
Mathematics, 16.12.2020 15:30
Chemistry, 16.12.2020 15:30
Computers and Technology, 16.12.2020 15:30
Computers and Technology, 16.12.2020 15:30
Mathematics, 16.12.2020 15:30
English, 16.12.2020 15:30