GSP-1010 EQUATION LIST FOR THE FIRST EXAM
EQUATIONS CONSTANTS AND UNITS
MATTER-ENERGY
E = m * c^2 E(Joules) = (kg*m^2/s^2)
c = 3 x 10^8 m/s
MOTION
v = H * D v(km/s) H = 72 km/s/Mpc D( Mpc)
T = 1/H T (yr) 1pc = 3.26 LY = 3.09 x 10^13 km
D = V * t D(m,ft,mi,km) v(m/s) t(s or hr)
V = (D(f) - D(o))/t v(m/s, ft/s, mi/hr, km/hr)
NOTE: (o) = original
V = (v(o) + v(f))/2 (f) = final
delta = (f) - (o)
a = (v(f) - v(o))/t a(m/s^2)
FORCES
F(Net) = m * a F (N)
N = kg * m/s^2
F(app) = F(Net) + F(Friction)
W = m* g W (N)
g = 9.8 m/s^2
MOMENTUM
Linear Momentum = m * v
Sum of mv (before) = Sum of mv (after) (kg * m/s)
F(Net) = (m * v(f) - m * v(o))/t
Impulse = F(Net) * t
F(Net) * t = Change in (m*v) F*t (N*s = kg*m/s)
Angular Momentum = L
L = m * v * r L(kg*m^2/s)
Torque = (L(f) - L(o)) /t Torque(lb*Ft, m*N)
Sum of L (before) = Sum of L (after) L(kg*m^2/s)
ENERGY AND WORK
KE = (1/2)* m * v^2 Energy or Work (J)
W = F * d (Note: here W = work) J = kg*m^2/s^2
GPE = m*g*h 1 calorie = 4.184 J
Sum (Total Energy) Before = Sum (Total Energy) (After)
Sum GPE + KE + Work (Added) (Before) J = Joules
= Sum GPE + KE + Work (Lost) (After)
P = Change in Energy/t P (Watt) (W)
1 J/s = 1 W (Watt)
= F * v 1 hp = 746 W = 550 lb*ft/s
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