Todo

UNIDADES BÁSICAS.
Múltiplos
3 km 3*10 [exp] 3 m 3000 m
3 Mm 3*10[exp] 6 m 3000 000 m
3 GM 3*10[exp] 9 m 3000 000 000 m
SUBMULTIPLOS
3 mm 3*10[exp] -3 m 0.003 m
3 Mm 3*10[exp] -6 m 0.000003 m
3 nm 3*10[exp] -9 m 0.000000003m

3.5*10-2/1.6*10-3= 0.0035/0.0016,3.5*10-3/1.6*10-3=1.5/4.6*10-(-3)= 1.5*10-3/4.6*10-3= 1.5/4.0*10= 3.5/1.6*10°=3.5/1.6=2.1875
(3.2*10-3) (3.5*10-3)
(3.2*10-3) (3.5*10*-3)
(3.2) (3.5) *10-3-+(-3)
(3.2) (3.5) * 10*-3-3
(3.2) (3.5)*10-6
1.12*10-5En el sistema internacional el tiempo está dado en segundos:
Cambiar 2.5 hrs ----------- *seg
*seg= 2.5hrs [3600/1hr] = (2.5) (3600)s = 9000s

Sistema int.
Distancias en metros1km--------1000m
Xm=3.5*10-2 km [1000/1km]
= (3.5*10-2) (1000) m
= (0.035) (1000) m
= 35m.
Tiempo en segundos 120 k/hrs
Distancia en metros
X m/s = 120 k/h [1000m/1km] [1kr/3600] = 120(10)/36 ms = 33.3ms

.Cambiar del Sistema ingles al Sistema internacional
3/4 in ----------------Xm
Xm=3/4 in [2.54cm/1in] [im/1000cm] = ¾ (2.54/100) m = 3(2.54/400) m=0.019 m

.Sistema internacional en maftenal Sistema ingles
2.5m=xft
Ift =30.5cm
Xft0 2.5m [1000cm/1m] [1ft/30.5cm] = 2.5 (100)/30.5 ft = 8.197ft

1 yarda --------- 3ft
1yd-------------- 8.197ft
*yad 8.197ft [1yarda/3ft] = 8.197/3yd =2.73 yd.
V= (-1-6) i + (1-4)j
V= -7i -3j
Tg-1 (-3/-7) =23.19°
Ø=180° + 23.19°
Ø= 203.19°

v=√ (7)2 + (3)2
v=√ 49+9
v=√58 =7.61 N 203.19°

v= [cos (Ø) i + sen (Ø) j]
= v cos (Ø) +v sen (Ø) j
= 7.61 cos (203.19)i + 7.61 sen (203.19)
= -6.99 i – 2.99 j

F=√fx2 + fy2
Vf=vo + axt
Ax= fx-fr/ni fr=mn n= w+ fy f=max ax= fx – fr
F= f cos Ø i + f sen Ø j
= 20 n cos (30°) I + 20n sen (30°)j
=17.32i-10j

Magnitude de un vector

F= f cos (330°) I + f sen (330°) j v=4i+3j
= 20n cos (330°) + 20n sen (330°)j z=2i+4j
=17.32i-10j....