![Physics](/tpl/images/cats/fizika.png)
Physics, 19.08.2021 20:50, kcwolford03
A scientist obtains images of a particular star, which appears as four separate stars.
Which phenomenon causes the star to appear this way?
O redshift
gravitational lensing
O principle of equivalence
O gravitational time dilation
![answer](/tpl/images/cats/otvet.png)
Answers: 2
Other questions on the subject: Physics
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 06:20, jonmorton159
Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. so it is no surprise that such clothing has largely replaced thickand heavy old-fashioned coats. (a) consider a jacket made of five layers of 0.1-mm-thick synthetic fabric (k = 0.13 w/m·°c) with 1.5-mm-thick air space (k = 0.026 w/m·°c) between the layers. assuming the inner surface temperature of the jacket to be 28°c and the surface area to be 1.25 m2, determine the rate of heat loss through the jacket when the temperature of the outdoors is 0°c and the heat transfer coefficient at the outer surface is 25 w/m2·°c. (b) what would your response be if the jacket is made of a single layer of 0.5-mm-thick synthetic fabric? what should be the thickness of a wool fabric (k = 0.035 w/m·°c) if the person is to achieve the same level of thermal comfort wearing a thick wool coat instead of a five-layer ski jacket?
Answers: 1
![image](/tpl/images/cats/fizika.png)
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 18:00, NotYourStudent
Which of the following is not a physical property of mattera. melting pointb. heat of combustionc. viscosityd. boiling point
Answers: 1
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 21:00, cathydaves
During a car accident, a 125kg driver is moving at 31m/s and in 1.5s is brought to rest by an inflating air bag. what is the magnitude of the change in momentum to the driver
Answers: 2
Do you know the correct answer?
A scientist obtains images of a particular star, which appears as four separate stars.
Which pheno...
Questions in other subjects:
![Konu](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 23.09.2019 23:30
![Konu](/tpl/images/cats/mat.png)
Mathematics, 23.09.2019 23:30
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/en.png)
English, 23.09.2019 23:30
![Konu](/tpl/images/cats/mat.png)
Mathematics, 23.09.2019 23:30
![Konu](/tpl/images/cats/mat.png)
Mathematics, 23.09.2019 23:30
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 23.09.2019 23:30