🎓 Physics • Modern Physics
100% Client-Side Privacy
Physics Formula Calculator & Constants
Master modern physics solver: E = mc², photon energy E = hf, simple harmonic pendulum, and De Broglie wavelengths.
Einstein’s Mass-Energy Equivalence
Formula: E = m · c² • c = 299,792,458 m/s
Physical Model: Mass Annihilation & EM Emission
Equivalent Total Energy Released
8.98755e+13 Joules
TNT Equivalent
0.021 Megatons
Electricity Generation
2.4965e+7 kWh
Nuclear Scale
5.6096e+26 MeV
Step-by-Step Mathematical Derivation
1. Mass in SI Base Units: m = 0.001 kg = 1.0000e-3 kg 2. Speed of Light Squared: c² = (299,792,458 m/s)² = 8.98755e+16 m²/s² (or J/kg) 3. Total Energy: E = m · c² = (1.0000e-3 kg) × (8.98755e+16 J/kg) = 8.98755e+13 Joules 4. Multi-Unit Conversions: • TNT Equivalent: 0.0215 Megatons TNT • Electric Utility: 2.4965e+7 kWh • Nuclear Scale: 5.6096e+26 MeV
What is Modern Physics?
Modern physics encompasses relativity and quantum mechanics, describing matter and energy at astronomical and subatomic scales.
Formula & Step-by-Step Calculation
E = mc², E = hf, λ = h / p
Landmark equations of Einstein, Planck, and De Broglie.
Worked Step-by-Step Examples
Example 1
Energy in 1 gram (0.001 kg) of matter
Solution: 8.988 × 10¹³ Joules (≈ 21.48 Kilotons TNT)
• 0.001 × (299792458)² ≈ 8.988 × 10¹³ J
Common Real-World & Academic Use Cases
- ✓ Nuclear fission and fusion energy release
- ✓ Photoelectric effect photon thresholds
- ✓ Electron microscope wavelength resolution
How to Use the Physics Formula Calculator & Constants
1
Select Landmark Formula
Choose E=mc², E=hf, Pendulum, or De Broglie.
2
Enter Variables
Input parameters.
3
Read Energy / Wavelength
Inspect exact values.
Frequently Asked Questions
Q: What is Planck's constant h?
h ≈ 6.62607015 × 10⁻³⁴ Joule-seconds (J·s).