Physics Calculators (Page 34)

Velocity, mechanics, energy, electricity and physics tools.

Enter current, wire length, wire resistance and supply voltage to estimate two-wire voltage drop, drop % and end voltage.

Enter voltage, current, daily hours and tariff to estimate power, monthly kWh and monthly electricity cost.

Enter air temperature (°C) and relative humidity (%) to estimate the dew point (°C and °F).

Enter torque (lb-ft) and RPM to compute horsepower (hp) and kilowatts (kW).

Enter vehicle weight (lb) and quarter-mile time (s) to estimate horsepower with the classic formula.

Estimate the Δv and transfer time of a Hohmann transfer between two circular orbits.

Compute telescope magnification M = objective focal length / eyepiece focal length.

Compute cosmological redshift z and recession velocity from observed and emitted wavelengths.

Compute distance (parsecs and light-years) from the annual parallax angle.

Compute distance (parsecs and light-years) from apparent and absolute magnitude.

Compute engineering stress σ = F/A from force F and area A.

Compute linear strain ε = ΔL/L₀ from length change and original length.