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Scilla [17]
4 years ago
12

I need help on these questions pls. If u get it wrong or if u just want points, I will report.

Physics
1 answer:
Eddi Din [679]4 years ago
5 0
The answer is to orient themselves and find food. 
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What voltage is needed to cause a 2A current flow through a 102 resistor?
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Answer:

204 V

Explanation:

V=IR

V= (2A)(102Ω)

V=204 V

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3 years ago
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8. A boy pulls a 20.0-kg box with a 140-N force at 30° above a horizontal surface. If the coefficient of kinetic friction betwee
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0.280 m is the correct answer

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3 years ago
A 13500 kg jet airplane is flying through some high winds. At some point in time, the airplane is pointing due north, while the
Mekhanik [1.2K]

Answer

given,

mass of the jet airplane = 13500 kg

Force on the plane = 35700 N due north

force from wind  = 15300 N in direction 80.0° south of west.

Force = 35700 \vec{j} N

force by wind = 15300(-cos \theta \vec{i}-sin \theta \vec{j}) N

                       = 15300(-cos 80^0 \vec{i}-sin 80^0 \vec{j}) N

net force on the jet airplane(ma)

          m a = 35700 \vec{j} + 15300(-cos 80^0 \vec{i}-sin 80^0 \vec{j})

          \vec{a} = \dfrac{35700}{13500} \vec{j} + \dfrac{15300}{13500}(-cos 80^0 \vec{i}-sin 80^0 \vec{j})

          \vec{a} = 2.64\vec{j} -0.197 \vec{i} - 1.116 sin 80^0 \vec{j})

           \vec{a} = -0.197 \vec{i} + 1.524 \vec{j}

a = \sqrt{-0.197^2+1.524^2}

a = 1.54 m/s²

\theta = tan^{-1}(\dfrac{-1.524}{0.197})

\theta = -82.63^0

3 0
3 years ago
Moving a distal part of arms or legs to follow a circular path is:
azamat
Moving a distal part of arms or legs to follow a circular path is called circumduction. This medical term is sometimes described as circular movement because the movements of hands and arms are tracing circles in the air or space. Circumduction is also described as conical movement.<span> </span>
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3 years ago
Check all of the following statements which are true. (You may need to consult Section 7.6 in the textbook.) You should check an
IrinaVladis [17]

Answer:

D

Explanation:

8 0
4 years ago
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