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Juliette [100K]
3 years ago
12

When red-headed woodpeckers (melanerpes erythrocephalus) strike the trunk of a tree, they can experience an acceleration ten tim

es greater than the acceleration of gravity, or about 98.1 m/s2. what is this acceleration in in/s2?\?
Physics
1 answer:
kifflom [539]3 years ago
8 0

98.1 m/s² × (1 in)/(0.0254 m) ≈ 3862 in/s²

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For a specific volume of 0.2 m3/kg, find the quality of steam if the absolute pressure is (a) 40 kPa and (b) 630 kPa. What is th
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Answer:

x=0.0498

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Explanation:

Specific Volume V=0.2m_3/kg

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Giving

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v_f=1.265*10^{-3}m^3/kg

v_g=3.993m^3/kg

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Giving

T_b=160.13C

v_f'=1.10282*10^{-3} m^3/kg

v_g'=0.30286 m^3/kg

(a)

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x=\frac{v-v_f}{v_g-v_f}

x=\frac{0.2-1.0265*10^{-3}}{3.993-1.0265*10^{-3}}

x=0.0498

(b)

Generally the equation for quality of Steam X  is mathematically given by

x'=\frac{v-v_f'}{v_g'-v_f'}

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3 years ago
A 110 V power line is protected by a 15 A fuse. What is the maximum number of 400 W lamps that can be simultaneously operated in
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Answer:

Total number of lamps will be 4            

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Answer:

Explanation:

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By holding another magnet close to it. If the object is attracted to the magnet, then it too is magnetic.

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