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Quadratic formula: Kinematics under constant acceleration: Average ...

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Gravitational Constant G : 6.67259 × 10 -11 N m 2 /kg 2<br />

Acceleration due to gravity (g) : 9.80 m/s 2<br />

<strong>Average</strong> earth-moon distance : 3.84 × 10 8 m<br />

<strong>Average</strong> earth-sun distance : 1.49 × 10 11 m<br />

<strong>Average</strong> radius of the earth : 6.37 × 10 6 m<br />

<strong>Average</strong> radius of Mars : 3.37 × 10 6 m<br />

Mass of the earth : 5.97 × 10 24 kg<br />

Mass of the moon : 7.36 × 10 22 kg<br />

Mass of the sun : 1.99 × 10 30 kg<br />

Mass of Mars : 6.42 × 10 23 kg<br />

Force<br />

1 N = 10 5 dyne<br />

1 N = 0.2248 lb<br />

Power<br />

1 hp = 550 ft lb/s<br />

1 W = 1 J/s<br />

1 W = 0.738 ft lb/s<br />

Time<br />

60 s = 1 min.<br />

60 min. = 1 hr.<br />

Mass<br />

1000 kg = 1 metric ton<br />

1000 g = 1 kg<br />

1 slug = 14.59 kg<br />

Length<br />

1 in. = 2.54 cm<br />

1 ft. = 12 in.<br />

1 yd. = 3 ft.<br />

1 m = 39.37 in.<br />

1 mile = 1.609 km<br />

1 Å = 10 -10 m<br />

1 lightyear = 9.461 × 10 15 m<br />

1 µm = 10 -6 m<br />

1 u = 1.66 × 10 -27 kg<br />

Energy<br />

1 J = 10 7 erg<br />

1 J = 0.738 ft lb<br />

1 cal = 4.186 J<br />

1 Btu = 252 cal<br />

1 eV = 1.6 × 10 -19 J<br />

1 kWh = 3.6 × 10 6 J<br />

931.5 MeV = 1 u

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