4. 5 boys can dig a trench in 4
days. How long will it take 10
similar boys?...
![subject](/tpl/images/cats/fizika.png)
Physics, 25.04.2021 17:50 SoccerHalo
4. 5 boys can dig a trench in 4
days. How long will it take 10
similar boys?
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 00:50
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 01:00
15. give an example for some particles or waves that are moving faster than light in everyday life 16. what is a laser? 17. what is an oscilloscope? 18. what does it means practically that nothing is faster than light in vacuum? 19. what is vacuum?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 04:20
When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:30
Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.02.2020 08:48
![question](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 08:48
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 03.02.2020 08:48
![question](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 08:49
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 08:49
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 03.02.2020 08:49
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.02.2020 08:49
![question](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 08:49
![question](/tpl/images/cats/en.png)
English, 03.02.2020 08:49