Carpeta Fisica-Julian Corrales

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Física: Curso de nivelación 
Julián Eduardo Corrales Hernández
DNI: 43.418.041
Legajo: 805333
Trabajo Practico: Magnitudes y Unidades.
1-
a-
1mi x (5280ft/1mi) (12in/ 1ft) (2.54cm/1in) (1m/100cm) (1km/1000m) = 1.61km
b-
1km x (1000m/1km) (100cm/1m) (1in/2.4cm) (1ft/12in) = 3280ft
2- 
Frasco = 0.473L
0.473L (1000cm3/1L) (1in/2.54cm) (1in/2.54cm) (1in/2.54cm) = 28.9in3
3- 
11.3g/cm3 (1Kg/1000g) (100cm/1m) (100cm/1m) (100cm/1m) = 11300 Kg/m3
4-
a) (1mm/7mm) x 100 = 0.13%
b) (0.01g/12g) x 100 = 8.3x10-3%
c) (1cs/3600cs) x 100 = 2.8x10-2 
5-
Ancho = 5.10 -Max: 5.10 + 0.01 = 5.11
 -Min: 5.10 – 0.01 = 5.09
 Alto = 1.9 -Max: 1.9 + 0.01 = 1.91
 -Min: 1.9 – 0.01 = 1.89
 Respuesta: A=9.69 0.07cm2
 6- 
a) 0.850 0.285cm3
 	b) 8.5cm/0.0150cm 189.5cm3
	
Trabajo Practico: Vectores
1-
a) A + B = C
C = (2.35, 0.78)
Magnitud = 2.48cm
Direccion = 18.4°
b) A – B = C
C = (0.45, 4.07) 
Magnitud = 4.09cm
Direccion = 83.7°
 
2-
	Vector equilibrante de A = (-1.4, -2.4)
	Vector equilibrante de B = (-2.4, 1.64)
3- 
	A = (1.23i + 3.38j)
	N = (-20.7i - 12j)
	C = (21.93i + 15.38j)
4-
	A = x = 100 x cos 30° = 86.60
	 y = 100 x sen 30° = 50
	Li = x = 80 x -sen 30° = -40
	 y = 80 x cos 30° = 69.28
	E = x = 40 x -cos 53° = -24,07
	 y = 40 x -sen 53° = -31.94
	R= = 90.20N
	 = arctan (87.35/22.53) = 75.54°
5- 
	C = A + B // C – B = A
A = x = 3.03 
 Magnitud de A = 5.20cm
	 y = -3.31 Dirección = -2.48°
	B = x = 6.40 x cos 63° = 2.91
	 y = 6.40 x sen 63° = 5.70
C = x = 6.40 x cos 112° = -2.40
	 y = 6.40 x sen 112° = 5.93
6- B + C = D // C = D - B
	A = 2km 
	B = 3.5km
	C = X
	D = 3.8km
Respuesta: -Magnitud 2.8km
 -Dirección: 61.70°
Trabajo Practico: Cinemática Unidimensional
1-
a) = (1000 – 63) / (5.9 – 1.15) = 197.26m/s
b) = (1000 – 0) / (5.9 – 0) = 169.49m/s
2-
a) Se van a encontrar a los 54.05s 
b) Cuando hayan recorrido:
Corredor1: 355.11m
Corredor2: 135.12m
c) 22.98s
Corredor1: 142.47m
Corredor2: 57.45m
3-
	a)
 
b)
-(0s, 2s): (6ms-0ms) / (2s-0s) = 3m/s2
-(2s, 4s): (10ms-6ms) / (4s-2s) = 2m/s2
-(4s, 6s): (16ms-10ms) / (6s-4s) = 3m/s2
-(6s, 8s): (18ms-16ms) / (8s-6s) = 1m/s2
-(8s, 10s): (20ms-18ms) / (10s-8s) = 1m/s2
-(10s, 12s): (22ms-20ms) / (12s-10s) = 1m/s2
-(12s, 14s): (22ms-22ms) / (14s-12s) = 0m/s2
c) La aceleración es constante en el intervalo (6s, 12s). Y no es acelerada en el intervalo (12s, 14s).
4-
a) 11m = a . (4s)2
 = a = 1.375m/s
b) No hay aceleración.
c) Vf = Vo + a . t
Vf = 1.375 . 4 = 5.5m/s
5- 
a) 8s: (44.72m/s – 0m/s) / (8s – 0s) = 5.59m/s2
60s: (447.22m/s – 0m/s) / (60s – 0s) = 7.45m/s2
8s, 60s: (447.22m/s – 44.72m/s) / (60s – 8s) = 7.74m/s2
b) (0s, 8s): 357.76m
(8s, 60s): 26.83km
6-
	0s: 0m, 0m/s2, 0m/s
 2s: 9m, 1m/s2, 4m/s
	4s: 16m, 2m/s2, 8m/s
	6s: 40m, 0.75m/s2, 8m/s
7- 
a) Vf = 48.59m/s
b) T = (120m)/ (48.59m/s) = 2.46s
c) Vf = -44.59m/s
8-
	
b- no se chocan
9- 
a) Persona caminando: 
x = x0 + v . t
x = 0 + 0.67m/s . 0.538s
x = 0.360m
	Huevo: 
1.75m = 3.2m + 0m/s . t – 1/2 (9.8m/s) . t2
T= 0.538s
b) 1.75m = 3.2m + 0.67m/s . t – 1/2 (9.8m/s) . t2
T= 0.616s
X = 0 + 0.67m/s . 0.616s
X = 0.412m