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lidiya [134]
3 years ago
8

In general, the ________ of a simple machine is the ratio of the distance over which the force is applied to the distance over w

hich the load is moved.
Physics
2 answers:
aksik [14]3 years ago
3 0
Mechanical advantage, i hope i helped you!
andrey2020 [161]3 years ago
3 0
Mechanical advantage 
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Robert has just bought a new model rocket, and is trying to measure its flight characteristics. The rocket engine package claims
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Answer:

The work done by the drag force is given by 29.96 J

Explanation:

Given :

Thrust force F = 12.3 N

Displacement d = 10.2 m

Mass of rocket m = 0.663 Kg

From work energy theorem,

  W = \Delta K

 W_{t} - Wd - W_{g} = KE

Where W_{t} = thrust work W_{g} = gravitational work

KE = 12.3 \times 10.2 -Wd - 0.663 \times 9.8 \times 10.2

KE = 59.2 -Wd

After cutoff kinetic energy is converted into potential energy,

KE = Wd' + mg\Delta h

Put value of KE

59.2 -Wd = Wd' + 0.663 \times 9.8 \times 4.5

Work done by drag force is given by,

Wd'+Wd =  59.2 -29.23

                 = 29.96 J

Therefore, the work done by the drag force is given by 29.96 J

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Which symbol is used for an alpha particle? a. β c. γ b. Δ d. α
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Joules is used for work. 
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Legend says that archimedes, in determining whether or not the king’s crown was made of pure gold, measured its volume by the wa
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