Pipe Diameter and Flow Rate Calculator (Q = A x v)
When you turn on your garden hose and turn the handle all the way, the water starts to spray out as mist: Why? This happens … Read More
JSCalc
Single Resistor Voltage Drop Calculator (V, Power, Watt Rating)
You stare at a flickering LED and wonder why your circuit behaves like it has a mind of its own. A few resistor sits in … Read More
AWG Voltage Drop Calculator With Gauge Selector Chart
When you flip the light switch to turn on the garage work lights, they flicker. You’ve got the proper wire gauge for the required amperage … Read More
12 Gauge Wire Voltage Drop Calculator (12 AWG Cu/Al)
Your garage just underwent a huge remodel. There are new lights, fresh concrete, and everything else. Time for some trim work so you grab your … Read More
LVL Beam Load Calculator: Span, Bending & Deflection
There’s a wall there now, but you want open space. You’re standing in that empty room. The roof hangs overhead and gravity pulls down. How … Read More
Work and Power Calculator: W = Fd cosθ, P = W/t, P = Fv
To put it another way: if you have to haul a heavy suitcase up a long staircase, do you notice the difference between efficiency and … Read More
Free Fall Impact Force Calculator (Drop Height & Force)
Drop your phone off your shoulder. On contact with the ground, it smashes into pieces on the concrete floor. But if you think it’s the … Read More
Free Fall Calculator With Air Resistance & Terminal Velocity
In high school physics class, we solved a lot of problems about dropping a ball in vacuum. But the real world has an atmosphere that … Read More
Total Momentum Calculator for a System of Objects
If you know about momentum then you can tell what is going to happen when two pool balls collid. Momentum combines an object’s resistance to … Read More
Initial Momentum Calculator (p = mv and via Impulse)
Physics problems start most of the time with a who-cares question: Where was something when it all went pear shaped? The answer is starting momentum. … Read More