Complete Question
The complete Question is shown on the first and second uploaded image
Answer:
The underlined words are the answers
Part A
Moving from boron to carbon, the intensity of the bulb <u>Increases</u> because Z increases from <u>5</u> to <u>6</u> , The thickness of the frosting <u>stays the same </u> because the core electron configuration is the same for both atoms
Part B
Moving from boron to aluminum the intensity of the bulb <u>Increases</u> because Z increases from <u>5</u> to <u>13</u> . The thickness of the frosting also <u>increases</u> because Al has the core configuration of <u>Ne</u>, while B has the core configuration of <u>He</u>
Explanation:
Here Z denotes the atomic number
Ne denoted the element called Neon and its electronic configuration is

He denoted the element called Helium and its electronic configuration is

B denoted the element called Boron and its electronic configuration is

Looking at its electronic configuration we can see that the core is He
I,e ![[He]\ 2s^2 2p^1](https://tex.z-dn.net/?f=%5BHe%5D%5C%202s%5E2%202p%5E1)
Al denoted the element called Aluminium and its electronic configuration is

Looking at its electronic configuration we can see that the core is Ne
I,e ![[Ne]\ 3s^2 \ 3p^1](https://tex.z-dn.net/?f=%5BNe%5D%5C%203s%5E2%20%5C%203p%5E1)
Answer:
9 N
Explanation:
The centripetal force F is F = mrω^2 = (mv^2)/r where m is mass, r is radius of the curve, ω is angular velocity and v is tangential velocity.
In this case, m = 0.5kg, r = 0.5m, v = 3m/s
So F = [0.5kg(3m/s)^2]/0.5m = 9kg-m/s^2 which is 9N
<u>NO.</u><u> Since </u><u>"c"</u><u> has no dimensions, the value of its exponent </u><u>"n" </u><u>is irrelevant to dimensional analysis, and thus </u><u>dimension analysis </u><u>cannot be used to determine the value of </u><u>"n".</u>
Dimensional analysis is not applicable to proportionality constants, trigonometrical or exponential equations, equation consisting of sum or difference of some quantities and equation consisting of more than three fundamental quantities.
What is Dimensional analysis?
- Dimensional Analysis is a problem-solving technique that makes use of the fact that any number or expression can be multiplied by one without changing its value.
- It is also known as the Factor-Label Method or the Unit Factor Method. It is a practical method.
What is a dimensional analysis used for?
Dimensional analysis is a method used in engineering and the physical sciences to reduce physical properties like acceleration, viscosity, and energy to their three basic dimensions of length, mass, and time (T).
Learn more about Dimensional analysis
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Answer:
1500 divided by 150(15m x 10m/s^2) = 10
Answer:
V = 15m/s
Explanation:
Given the following data;
Initial velocity = 3m/s
Time = 8secs
Acceleration = 1.5m/s²
To find the final velocity, we would use the first equation of motion;
V = U + at
Substituting into the equation, we have
V = 3 + 1.5*8
V = 3 + 12
V = 15m/s