4 years ago

Which statement best describes plastic's ability to conduct electricity?

2 answers:

3 0

<span>They are poor insulators because the electrons in the atom are tightly bound and unable to move between other atoms.
</span>

Kazeer [188]4 years ago

3 0

The real answer is D... the electrons can move freely between the different energy levels within the atom....

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Newton's first law of motion is also called the law of acceleration true or false

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False. Newton first is also called the law of intertia

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3 years ago

What mechanical layer lies below the lithosphere

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The <span>asthenosphere is under the lithosphere.</span>

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A small ball with mass 1.20 kg is mounted on one end of a rod 0.860 m long and of negligible mass. The system rotates in a horiz

Rufina [12.5K]

Answer:

0.88752 kgm²

0.02236 Nm

Explanation:

m = Mass of ball = 1.2 kg

L = Length of rod = 0.86 m

$\theta$ = Angle = 90°

Rotational inertia is given by

$I=mL^2\\\Rightarrow I=1.2\times 0.86^2\\\Rightarrow I=0.88752\ kgm^2$

The rotational inertia is 0.88752 kgm²

Torque is given by

$\tau=FLsin\theta\\\Rightarrow \tau=2.6\times 10^{-2}\times 0.86sin90\\\Rightarrow \tau=0.02236\ Nm$

The torque is 0.02236 Nm

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3 years ago

Which material produces static charge when rubbed?

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Many materials produce static charge

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3 years ago

Which type of heat transfer causes your face to feel warm when you sit in the sun?

MA_775_DIABLO [31]

Answer:

Radiation

Explanation:

The sun radiates energy to the earth to make it warmer near the equator.

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4 years ago