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Tutor profile: Hammad H.

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Hammad H.
Medical Student and Tutor
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Questions

Subject: Pre-Calculus

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Question:

Calculate sin(540 deg)

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Hammad H.
Answer:

Without using a calculator, we can use the double angle identity for sin. sin(2*theta) = 2sin(theta)cos(theta) sin(2*270) = 2sin(270)cos(270) sin(2*270) = 2(-1)(0) sin(2*270) = 0 sin(540) = 0

Subject: Medicine

TutorMe
Question:

What will happen to glomerular filtration rate (GFR) when using an ACE inhibitor like Enalapril?

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Hammad H.
Answer:

GFR will decrease. Normally, efferent arteriole constriction (as stimulated by angiotensin II) will lead to an increase in glomerular filtration. However, medications like ACE inhibitors decrease angiotensin II levels and therefore will lead to a decrease in GFR.

Subject: Basic Chemistry

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Question:

Which element has the highest first ionization energy?

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Hammad H.
Answer:

Helium. Helium has a full valence shell and therefore it will be hard or require lots of energy in order to remove the electron. Additionally, it's important to be aware of periodic trends. As you go left to right across a period in the periodic table, ionization energy increases. However, as you go down a group ionization energy decreases.

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