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Understanding work by example

by Dr. Osama M. Khaled — published Jun 24, 2023 — last modified Jun 24, 2023 09:31 PM Located in Physics / Momentum and Energy Conservation / Work

Units Used in Newton's second law

by Dr. Osama M. Khaled — published Feb 13, 2023 — last modified Jul 13, 2024 10:01 PM — filed under: Year 10

What is the correct unit of force?

Located in Physics / Newton's Laws of Motion

Universal Gas Law Calculator

by Dr. Osama M. Khaled — published May 31, 2025 — last modified May 31, 2025 09:22 PM

The Universal Gas Equation (also called the Ideal Gas Law) describes the relationship between pressure (P), volume (V), amount of substance (n), and ...

Located in Tools / Chemistry Tools

$Universal Gas Law Calculator$

Unlike Amazon EBS, Amazon Simple Storage Service (Amazon S3) is a standalone storage solution that isn’t tied to compute

by Dr. Osama M. Khaled — published Aug 07, 2024 — last modified Oct 22, 2024 05:39 AM Located in Computing / … / Amazon Web Services (AWS) / AWS Storage Essentials

upward acceleration.png

by Dr. Osama M. Khaled — last modified May 26, 2022 07:27 AM Located in Physics / … / Gravity acceleration / What is the speed of an object thrown upward with a starting speed of 29.4 at third second?

$upward acceleration.png$

Uranium symbol is

by Dr. Osama M. Khaled — published Sep 20, 2022 — last modified Sep 20, 2022 09:03 PM Located in Chemistry / Atoms, Molecules, and Ions / Names and Symbols of Common Elements

URI stands for

by Dr. Osama M. Khaled — published Aug 08, 2022 — last modified Aug 09, 2022 01:03 AM Located in Computing / … / Service-Oriented Architecture / REST APIs

US Cities

by Dr. Osama M. Khaled — published Sep 15, 2023 — last modified May 25, 2025 10:21 PM Located in Mathematics / … / An Introduction to the Whole Numbers / Round whole numbers

Use a protractor to measure angles

by Dr. Osama M. Khaled — published Jan 14, 2023 — last modified Jul 13, 2024 10:02 PM — filed under: Year 7

How to use protractor to measure angles

Located in Mathematics / Geometry / Fundamentals

Use congruence properties to prove that two triangles are congruent

by Dr. Osama M. Khaled — published Nov 29, 2025 — last modified Dec 06, 2025 11:29 PM — filed under: Year 8

Sometimes it is possible to conclude that two triangles are congruent without having to show that three pairs of corresponding angles are congruent and three ...

Located in Mathematics / Geometry / Congruent Triangles and Similar Triangles

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