Mastering physics:
A)
Charge q1 is distance r from a positive point charge Q. Charge q2...
![subject](/tpl/images/cats/fizika.png)
Physics, 29.09.2021 01:00 Masielovebug
Mastering physics:
A)
Charge q1 is distance r from a positive point charge Q. Charge q2=q1/3 is distance 2r from Q. What is the ratio U1/U2 of their potential energies due to their interactions with Q?
Hint: use U=(KqQ)/s
B)
Charge q1 is distance s from the negative plate of a parallel-plate capacitor. Charge q2=q1/3 is distance 2s from the negative plate. What is the ratio U1/U2 of their potential energies?
Hint: use U=qEs
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 12:30
Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:00
How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 20:00
Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 21:20
People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. in a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina.with the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 2.05cm in front of the eye.)
Answers: 3
You know the right answer?
Questions
![question](/tpl/images/cats/himiya.png)
Chemistry, 26.11.2020 02:50
![question](/tpl/images/cats/istoriya.png)
History, 26.11.2020 02:50
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.11.2020 02:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.11.2020 02:50
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.11.2020 02:50
![question](/tpl/images/cats/en.png)
English, 26.11.2020 02:50
![question](/tpl/images/cats/en.png)
English, 26.11.2020 02:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 26.11.2020 02:50
![question](/tpl/images/cats/biologiya.png)
Biology, 26.11.2020 02:50
![question](/tpl/images/cats/en.png)
English, 26.11.2020 02:50
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 26.11.2020 02:50
![question](/tpl/images/cats/pravo.png)
Law, 26.11.2020 02:50