![subject](/tpl/images/cats/fizika.png)
Physics, 07.01.2021 01:00 carafaith02
Plz help asap i have a lot left and this is almost due
Did there appear to be a difference between the work done to lift the objects versus sliding them across the table? Which took more work? Why do think this was the case?
Which would take more work: lifting a 4 N box 0.5 m or a 1 N box 4 m? Explain your answer.
Sheleah does 1500 J worth of work on a 250 N box. How far does she have to move the box?
A 400 kg box and a 200 kg are to pushed across a horizontal table, the exact same distance with the exact force. Which box will have the most work done on it? Which box will get to the end first? Explain both of your responses.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 22:30
Under conditions for which the same room temperature is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the winter but comfortable in the summer. provide a plausible explanation for this situation (with supporting calculations) by considering a room whose air temperature is maintained at 20â°c throughout the year, while the walls of the room are nominally at 27â°c and 14â°c in the summer and winter, respectively. the exposed surface of a person in the room may be assumed to be at a temperature of 32â°c throughout the year and to have an emissivity of 0.90. the coefficient associated with heat transfer by natural convection between the person and the room air is approximately 2 w/m2 â‹…â‹… k. what is the ratio of the thermal resistance due to convection to the thermal resistance due to radiation in the summer? what is the ratio of thermal resistances in the winter
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:30
On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:00
**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:30
Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?
Answers: 3
You know the right answer?
Plz help asap i have a lot left and this is almost due
Did there appear to be a difference between...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 05.11.2020 21:20
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 05.11.2020 21:20
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/pravo.png)
Law, 05.11.2020 21:20
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.11.2020 21:20
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 05.11.2020 21:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 05.11.2020 21:20
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.11.2020 21:20