![subject](/tpl/images/cats/fizika.png)
Physics, 07.12.2020 17:30 anilauferc
1. Un automóvil tiene una aceleración muy alta. Partiendo del reposo, su velocidad puede, en
promedio, aumentar 7.31 m/s cada segundo, hasta alcanzar el valor de 27.8 m/s, equivalentes a 100
km/h.
a) ¿Cuánto tiempo necesita para alcanzar la velocidad de 100 km/h, partiendo del reposo?
b) Suponiendo que su aceleración es constante, ¿qué distancia recorre en este movimiento
acelerado?
c) ¿Puedes decir, sin hacer ningún cálculo, qué parte de la distancia calculada en b) ha recorrido el
automóvil hasta el momento en que su velocidad era de 50 km/h?
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/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 18:00
Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 19:30
Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 02:20
Aflute player hears four beats per second when she compares her note to a 523 hz tuning fork (the note c). she can match the frequency of the tuning fork by pulling out the “tuning join” to lengthen her flute slightly. what was her initial frequency?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 07:30
Aboat travels at 15 m/s in a direction 45° east of north. the boat then turns and travels at 18 m/s in a direction 5° north of east. what is the magnitude of the boat's resultant velocity? round your answer to the nearest whole number. /s what is the direction of the boat's resultant velocity? round your answer to the nearest whole degree. ° north of east
Answers: 1
You know the right answer?
1. Un automóvil tiene una aceleración muy alta. Partiendo del reposo, su velocidad puede, en
promed...
Questions
![question](/tpl/images/cats/biologiya.png)
Biology, 23.09.2019 19:00
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
Physics, 23.09.2019 19:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.09.2019 19:00
![question](/tpl/images/cats/en.png)
English, 23.09.2019 19:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mir.png)
World Languages, 23.09.2019 19:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 23.09.2019 19:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.09.2019 19:00
![question](/tpl/images/cats/biologiya.png)
Biology, 23.09.2019 19:00
![question](/tpl/images/cats/mat.png)
Mathematics, 23.09.2019 19:00