![subject](/tpl/images/cats/fizika.png)
Physics, 18.04.2020 02:25 Mackjrmario
A 1300 kg elevator is lifted at a constant speed of 1.3 m/s through a height of 22 m. How much work is done (a) by the tension in the elevator cable and (b) by gravity?
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 23:30
Which lists the main components of darwinβs theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 00:00
Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:10
An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 Λf and standard atmospheric pressure, what is the value of the mach number?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 19:30
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
Answers: 3
You know the right answer?
A 1300 kg elevator is lifted at a constant speed of 1.3 m/s through a height of 22 m. How much work...
Questions
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 19.02.2020 23:03
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.02.2020 23:03
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 19.02.2020 23:04
![question](/tpl/images/cats/biologiya.png)
Biology, 19.02.2020 23:04