Related Clues:

• Physics concept
• Weekly service
• Part of 'E=mc2'
• Measure in Newton's second law
• The "m" in E = mcВІ
• All embracing
• Part of an Einstein equation
• Church ritual
• Force divided by acceleration
• Service at St. Peter's
• Kind of media or hysteria
• Part of an Einsteinian equation
• E ÷ c2
• Catholic ritual
• __ media