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| бет | 11/13 | | Дата | 11.09.2017 | | өлшемі | 3,99 Mb. | | #32046 |
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THERMOMETER
Fahrenheit | Centigrade |
Fahrenheit
|
Centigrade
| 212 | 100 |
98.6
|
37
| 194 | 90 |
96.8
|
36
| 176 | 80 |
95
|
35
| 158 | 70 |
86
|
30
| 140 | 60 |
77
|
25
| 122 | 50 |
68
|
20
| 113 | 45 |
59
|
15
| 107.6 | 42 |
50
|
10
| 105.8 | 41 |
41
|
5
| 104.0 | 40 |
32
|
0
| 102.2 | 39 |
23
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- 5
| 100.4 | 38 |
14
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- 10
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DENSITY
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FORCE
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PRESSURE; STRESS
1 lb/in2
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= 0.070 kg/cm2
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1 in. Hg
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= 33.86 mb
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TEMPERATURE
Temp. o F
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= (1.8 x temp. o C) + 32
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HEAT
1 B.t.u.
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= 778 ft lb
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= 1055 joule
= 252 calorie
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1 Therm
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= 105 B.t.u
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= 25200 Cal
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WORK
POWER
1 horse power.
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= 550 ft lb/sec
= 746 watt
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= 1.014 C.V.
= 76.04 kg m/sec
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1 watt
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= 0.102 kg m/sec
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SPEED AND M.P.G.
60 miles/hour (m.p.h.)
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= 88 ft/sec
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= 96.6 km/h
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1 knot
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= 1 nautical mile/hour
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= 1.85 km/h
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30 miles/gallon
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= 10.6 km/litre
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= 9.4 litre/100 km
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APPENDIX 2
SYMBOLIC SIGNS OF PHYSICAL QUANTITIOES
УСЛОВНЫЕ ОБОЗНАЧЕНИЯ ФИЗИЧЕСКИХ ВЕЛИЧИН
Достарыңызбен бөлісу: |
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