Calculate the time it takes for sunlight to reach Earth if it travels at 300,000 km / s, knowing that the distance from the sun to the earth is 150,000,000 km. Express it in minutes
Answer:
8.3min
Explanation:
Given parameters:
Speed of sunlight = 300000km/s
Distance of sun and earth = 150000000km
Unknown:
Time in minutes = ?
Solution:
To solve this problem;
Speed = 
Time = 
Now insert the parameters and find the speed;
Time = 
= 500s
Now;
60s makes 1 minute
500s will give 
= 8.3min
With angular momentum quantum number l = 2. in units of ħ, the value of l will be 2.4494 h.
<h3>What is the angular momentum quantum number?</h3>
The total angular momentum quantum number in quantum mechanics parametrizes the total angular momentum of a particular particle by combining its orbital angular momentum and intrinsic angular momentum.
Given the angular momentum quantum number l = 2. in units of ħ. Therefore, the value of L can be written as,
L = √[l (l + 1)]
L = √[2 (2 + 1)]
L = √[2 (3)]
L = √6
L = 2.4494 h
Hence, With angular momentum quantum number l = 2. in units of ħ, the value of l will be 2.4494 h.
Learn more about Angular momentum quantum numbers here:
brainly.com/question/16725426
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Answer:
Electric current is flow of electrons in a circuit.
Explanation:
Wires are made up of conductors such as copper or aluminum. Atoms of metal are made up of free electrons, which freely move from one atom to the next. If an electron is added in wire, a free electron is attracted to a proton to be neutral. Forcing electrons out of their orbits can cause a lack of electrons. Electrons, which continuously move in wire, are called Electric Current.
Answer:
yes
Explanation:
its a size independent property
