Physical Science for ProgressPrentice-Hall, 1970 - 626 σελίδες |
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Σελίδα 123
... increases , the pressure increases . Pressure caused by gases is due to the motion of the molecules . Pumping more air into a tire increases the pressure be- cause there are more molecules striking the sides of the tire . See Figure 3 ...
... increases , the pressure increases . Pressure caused by gases is due to the motion of the molecules . Pumping more air into a tire increases the pressure be- cause there are more molecules striking the sides of the tire . See Figure 3 ...
Σελίδα 214
... increases . When the current is greater than is safe for the wire , the arma- ture is pulled back and the circuit is broken . This helps to protect the circuit and prevent fires . Tacks FIGURE 5-59 The electromagnet picks up more nails ...
... increases . When the current is greater than is safe for the wire , the arma- ture is pulled back and the circuit is broken . This helps to protect the circuit and prevent fires . Tacks FIGURE 5-59 The electromagnet picks up more nails ...
Σελίδα 241
... increases as the resistance is moved nearer the fulcrum . ance . As the resistance is moved nearer the fulcrum , the M.A. increases . The M.A. of a lever of the third class depends upon the position of the effort . A third - class lever ...
... increases as the resistance is moved nearer the fulcrum . ance . As the resistance is moved nearer the fulcrum , the M.A. increases . The M.A. of a lever of the third class depends upon the position of the effort . A third - class lever ...
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UNIT | 49 |
distributors of the John Frankenheimer film Grand Prix A General Electric Company 337 bottom rightGeneral Electric | 92 |
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acid acting ACTIVITY added amount atoms beam become body called carbon causes cell charges chemical chemical change circuit color combining compounds connected contains copper determined direction distance earth effort electrical electrical charges electrons elements energy engine equal experiment explain facts feet FIGURE flow force fuel gain gives glass grams happens heat hour hydrogen inch increases ions iron kinds lamp laser layer length light liquid magnet mass materials matter means measure metal miles mirror molecules moon motion move nature needed object oxygen particles piece plane plate pole position pounds pressure produced push rays reflected resistance Result rock scientists shell side sodium solution sound space speed spring stars Study surface temperature Terms theory travels tube turns units waves weight wire