Ejercicios De Fisica

ESTATICA Y DINAMICA

LIBRO DE EVIDENCIAS

CONVERCIONES, TRIGONOMETRIA, LEY DE SENOS Y COSENOS

REALIZADA POR:
HECTOR JAVIER ROMERO VAZQUEZ

ASESOR ACADÉMICO:
ING. FRANCISCO FUENTES IBARRA

Torreón, Coahuila, jueves 18 de abril de 2012
Regla de Tres
Conversiones
1)
76m ------ km
1km ------ 1000m
? ------ 16m
=0.076km
2)
1kg ------ gr
94kg ------?
=94,000gr3)
60kmh---- ms
60kmhr=1000m1km1hr60min1min60seg=60000m3600seg=
=16.6mseg
1kmhr----0.2778 ms
60 kmhr
=16.6 ms
4)
3.5km ------ m
1km ------ 1000m
35km ------ ?
=3,500m

5)
590seg ------ hr
1hr ------ 3600seg
------ 590seg
=0.16hr
4)
1kg ------ 2.205lb
450kg ------?
=992.25lb
6)
570mi ----- km
1mi ------ 1.609
570 ------?
=917.13km
7)
1mi ------ 1609 =1.609km
450slug ------ kg

1slug ------ 14.59kg
460slug ------?
=6.711kg
8)
12lb ----- kg
1lb ------0.453kg
12lb ------?
=5.4432kg

9)
20ft ------ m
1ft ------ 0.3048m
20ft ------?
=6.096m
10)
29in ------ cm
1in ------ 0.02540000m
29in ------?
=0.7366m
11)
30in2---- cm2
1in2---- 6.452cm2
30in2---- ?
=193.56cm2

Tarea 1
1)
18kmh---- cmseg18km1hr=1000m1km100cm1m60min1hr60seg1min=
=1800000cm3600seg=500 cmseg
2)
45in ------ yd
1yd ------ 360.23
? ------ 45in
=0.1249yd
3)
24gal ------ lts
1gal ------ 3.751lts
24gal ------ ?
=89.76lts
4)
7.6lts ------ 1hectolitro
1 hectolitro ------ 100lts
? ------ 7.6lts
=0.070hectolitro
5)
1.5mi ------ ft
1mi ------ 5280ft
1.5mi ------?
=7920ft

6)
6m3---- in3
1m3---- 39.37in36m3---- ?
=236.22in3
7)
15lb ------ onza
1lb ------ 16oz
15lb ------
=900oz
8)
94 mihr---- cmseg

1hr ------ 3600seg 1mi ------ 160934cm
1mi ------ 160934cm 94mi ------?
15127790cm3600seg=4202.165 cmseg
9)
560yd3---- ft3

yd3---- 27ft3
560yd3---- ?
=15120ft3

Escalas Termométricas
°C=°F-321.8

℉=1.8*℃+32

°K=℃+273.151)
45℃---- ℉
℉=1.8*45+32
℉=113
2)
200℉---- ℃
℃=200-321.8
℃=93.3
3)
30℃---- °K
°K=30℃+273.15
°K=303.15
4)
450°K---- ℃
°K=℃*273.15….1
°K=-273.15….2
450-273.15=℃
℃=176.15℃

5)
385°K---- °F
385°K—273.15=°C
°F1.8*111.85°C+32
°F=233.33
6)
502°F----°K
°C502-321.8=261°C
°K=261.11+273.15
°K=534.26
7)
30°F----°K
°C30-321.8=-1.11°C
°K=1.11+273.15
°K=272.04
8)
70℃---- ℉℉=1.8*70+32
℉=158
9)
530°K----°C
°K=°C+273.15
-273.15+530°K=°C
°C=256.85

10)
220°F----°C
°C=°F-321.8= °C=220-321.8= °C=104.44
11)
50°C----°K
°K=°C+273.15= °K=50+273.15= °K=323.15
12)
80°F----°K
°C=°F-321.8= °C=80-321.8= °C=26.66
°K=°C+273.15= °K=26.6+273.15= °K=299.81
13)
100°C----°F°F=1.8*°C-32= °F=1.8*100+32= °F=212
14)
100°C----°K
°K=°C+273.15= °K=100+273.15= °K=373.15
15)
350°F----°C
°C=°F-321.8= °C=350-321.8= °C=176.66
16)
0°C----°F
°F=1.8*°C-32= °F=1.8*0+32= °F=32
17)
0°C----°K
°K=°C+273.15= °K=0+273.15= °K=273.15

TRIGONOMETRIA
Sen=ab opuestohipotenusaCos=bc adyacentehipotenusa

Tan=ab opuestoadyacente

Teorema de Pitágoras
a2=b2+c2
b2=a2-c2
c2=a2-b2

1)

a=? b=50 c=40
a2=b2+c2
a=b2+c2
a=502+402
a=64.03

2)

a=30 b=25 c=?
c2=a2-b2
c=a2-b2
c=302-252
c=16.5
3)

a=125 b=? c=60
b2=a2-c2
b=a2-c2
b=1252-602
b=109.65
4)

a=? b=14 c=18
a2=b2+c2
a=b2+c2
a=142+182
a=22.8

5)a=7.5 b=? c=18
b2=a2-c2
b=a2-c2
b=7.52-18
b=5.35
6)

a=43.5 b=? c=34
b2=a2-c2
b=a2-c2
b=43.52-342
b=27.13
7)

a=? b=30 c=40
a2=b2+c2
a=b2+c2
a=302+402
a=50

8)

a=175.3 b=156 c=?
c2=a2-b2
c=a2-b2
c=175.32-1562
c=79.96
9)

a=9.3 b=6.93 c=?
c2=a2-b2
c=a2-b2
c=9.32-6.932
c=6.2

a=? b=50m c=64m
A=90° B=?...