![subject](/tpl/images/cats/fizika.png)
Physics, 20.11.2020 16:50 Mordred4987
A girl and her bicycle have a total mads of 42 kg. At the top of the hill her speed is 4 m/s. The hill is 14.3m high and 112m long. If the force of friction as she rides down the hill is 20N, what us the speed at the bottom.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:00
Sobre transformações cÃclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cÃclica é nula; ii – o trabalho, em uma transformação cÃclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cÃclica 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
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:00
Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:00
Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little
Answers: 2
You know the right answer?
A girl and her bicycle have a total mads of 42 kg. At the top of the hill her speed is 4 m/s. The hi...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.09.2020 02:01
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.09.2020 02:01
![question](/tpl/images/cats/mat.png)
Mathematics, 04.09.2020 02:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 04.09.2020 02:01
![question](/tpl/images/cats/mat.png)
Mathematics, 04.09.2020 02:01
![question](/tpl/images/cats/mat.png)
Mathematics, 04.09.2020 02:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 04.09.2020 02:01
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.09.2020 02:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
English, 04.09.2020 02:01
![question](/tpl/images/cats/en.png)
English, 04.09.2020 02:01