Physics, 31.03.2020 12:54 natalie2sheffield
An ice cube (n = 1.31) has a layer of water (n = 1.33) on it. What is the critical angle for a ray in water trying to enter the ice?
(Unit=deg)
Answers: 3
Physics, 22.06.2019 12:30
What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery
Answers: 1
Physics, 22.06.2019 18:00
Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.
Answers: 1
Physics, 23.06.2019 01:30
The field lines around one end of a bar magnet are shown below based on the diagram, what can you conclude about the pole of the magnet? a.is a south pole because the field hnes spread out from this end b.a north pole because the field lines spread out from this end c.a nouth pole because the field lines enter the magnet at this end d.is a north pole because the field lines enter the magnet at this end
Answers: 1
Physics, 23.06.2019 10:50
In the graph, each sinusoidal curve shows the shape of a vibrating string at a different moment. for which values of x does a node occur? (let k = an integer from -2 to +2.) k + 0.5 0.5k k 2k + 1.5
Answers: 1
An ice cube (n = 1.31) has a layer of water (n = 1.33) on it. What is the critical angle for a ray i...
World Languages, 18.10.2019 18:10
Mathematics, 18.10.2019 18:10
Physics, 18.10.2019 18:10
Mathematics, 18.10.2019 18:10
History, 18.10.2019 18:10
History, 18.10.2019 18:10
Geography, 18.10.2019 18:10
Biology, 18.10.2019 18:10
Mathematics, 18.10.2019 18:10
History, 18.10.2019 18:10