°C = (°F - 32) × 5/9 Reverse: °F = (°C × 9/5) + 32 Common references: - 32°F = 0°C (freezing) - 98.6°F = 37°C (body temp) - 212°F = 100°C (boiling) view more
2/3 ÷ 1/2 = 4/3 (or 1⅓) To divide fractions, multiply by the reciprocal: 2/3 × 2/1 = 4/3 4/3 = 1 and 1/3 view more
SSD (Solid State Drive) - No moving parts - 5-20× faster - More durable, quieter - More expensive per GB HDD (Hard Disk Drive) - Spinning magnetic platters - Cheaper per GB - Better for mass storage... view more
299,792,458 meters per second Approximately: - 300,000 km/s - 186,000 miles/s Denoted as "c" in physics. view more
A bond formed by electron transfer between atoms. view more
Law of Inertia: An object at rest stays at rest, and an object in motion stays in motion at constant velocity, unless acted upon by an external force. view more
3/4 as a decimal is 0.75 Simply divide the numerator by the denominator: 3 ÷ 4 = 0.75 Equivalent forms: - Decimal: 0.75 - Percentage: 75% - Fraction: 3/4 or 6/8 view more
"Their" shows possession, "there" indicates a place, and "they're" is a contraction of "they are." Use "their" when something belongs to a group: "Their car is parked outside." Use "there" to indicat... view more
12 squared is 144. view more
1945 Key dates: - May 8, 1945: V-E Day (Victory in Europe) - August 15, 1945: V-J Day (Japan surrenders) - September 2, 1945: Formal surrender signed Japan surrendered after atomic bombings of Hiros... view more
July 28, 1914 Trigger: Assassination of Archduke Franz Ferdinand Key facts: - Ended: November 11, 1918 - Involved 30+ countries - ~17 million deaths view more
Russia - 17.1 million km² Top 5 largest countries: 1. view more
The golden ratio is approximately 1.618, represented by the Greek letter phi (φ). view more
x = 8 or x = -2 Absolute value equations |A| = B have two solutions: Case 1: x - 3 = 5 x = 8 Case 2: x - 3 = -5 x = -2 view more
F = ma (Force = mass × acceleration) Example: - Mass: 10 kg - Acceleration: 2 m/s² - Force: 10 × 2 = 20 Newtons The unit of force (Newton) is defined as kg⋅m/s². view more
Long-term shifts in global temperatures and weather patterns. view more
30% of 150 is 45. view more
pH 7 (neutral) The pH scale: - 0-6: Acidic - 7: Neutral - 8-14: Basic (alkaline) Pure water has equal concentrations of H⁺ and OH⁻ ions. view more
Volume = (4/3)πr³ Example: Sphere with radius 3 V = (4/3) × π × 27 = 36π ≈ 113.1 cubic units view more
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