Physics
Acceleration Formula Examples: 6 Solved Problems
The fastest way to get comfortable with acceleration is to solve a few problems. Each acceleration formula example…
Guides & Formulas
In-depth guides, formulas, and how-tos for engineering, trades, and everyday calculations. Learn the method, then use the matching free calculator.
Physics
Dimensional Formula of Acceleration Due to Gravity (g)
The acceleration due to gravity, g, is an acceleration like any other, so its dimensions follow from length…
Math
Weighted Average Examples: How Weights Change the Result
A weighted average gives some values more say than others. The idea is simple, but it is easier…
Math
Weighted Mean Formula in Research: How to Apply and Interpret It
Research data rarely treats every value equally. A survey may need some answers to count more than others,…
Math
How to Calculate a Weighted Average in Google Sheets
Google Sheets has a built-in function for weighted averages, and a classic formula that works in every spreadsheet.…
Construction
How to Measure Acreage on Google Maps (Step by Step)
Google Maps can measure the area of a field, a lot, or a backyard from your browser in…
Construction
How to Measure Acreage in Google Earth (Pro and Web)
Google Earth can show the area of a parcel straight in acres, which saves a conversion step. This…
HVAC
How to Find AC Tonnage from the Model Number
Every central air conditioner hides its size in the model number on the outdoor unit. Once you know…
Finance
How to Calculate Simple Interest With Examples
Simple interest is the easiest kind of interest to work out: it is charged or earned only on…
Finance
How to Calculate IRR: Formula, Examples, and Methods
The internal rate of return (IRR) is the discount rate that makes an investment’s net present value exactly…
Finance
How to Calculate Payback Period in Excel
The payback period is how long an investment takes to earn back its cost. It is one of…
Percentage
How to Calculate Percentage of Marks: Formula, Examples & Calculator
Your percentage of marks shows how much of the total you scored, on a scale of 100. Schools,…
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