![subject](/tpl/images/cats/fizika.png)
Physics, 20.08.2019 01:50 showerofstars
How much energy do you save per hour if you replace a 60-watt lightbulb with a 55-watt lightbulb ?
![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 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:30
The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:20
Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow
Answers: 1
You know the right answer?
How much energy do you save per hour if you replace a 60-watt lightbulb with a 55-watt lightbulb ?...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 26.03.2021 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.03.2021 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.03.2021 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.03.2021 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.03.2021 04:00
![question](/tpl/images/cats/geografiya.png)
Geography, 26.03.2021 04:00
![question](/tpl/images/cats/biologiya.png)
Biology, 26.03.2021 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.03.2021 04:00
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 26.03.2021 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.03.2021 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.03.2021 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.03.2021 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.03.2021 04:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.03.2021 04:00