![subject](/tpl/images/cats/fizika.png)
Physics, 22.09.2019 05:20 lucywood2024
Using the formula for kinetic energy (k=1/2mv2), calculate the kinetic energy when m = 423 and v = 4.71.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:30
Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:20
Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:00
In which of the following is positive work done by a person on a suitcase
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:30
Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance
Answers: 3
You know the right answer?
Using the formula for kinetic energy (k=1/2mv2), calculate the kinetic energy when m = 423 and v = 4...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 22.04.2021 09:20
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/en.png)
English, 22.04.2021 09:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.04.2021 09:30
![question](/tpl/images/cats/biologiya.png)
Biology, 22.04.2021 09:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.04.2021 09:30
![question](/tpl/images/cats/istoriya.png)
History, 22.04.2021 09:30
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2021 09:30
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2021 09:30
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2021 09:30
![question](/tpl/images/cats/fizika.png)
Physics, 22.04.2021 09:30
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2021 09:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2021 09:30
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2021 09:30
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2021 09:30
![question](/tpl/images/cats/en.png)
English, 22.04.2021 09:30