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zalisa [80]
2 years ago
14

An extended body (not shown in the figure) has its center of mass at the origin of the reference frame. In the case below give t

he direction for the torque τ with respect to the center of mass of the body due to force F acting on the body at a location indicated by the vector r.
Options:
X
-X
Y
-Y
Z
-Z

Physics
1 answer:
bixtya [17]2 years ago
8 0
Vector -x location is equal to vector r
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A wave pulse travels down a slinky. The mass of the slinky is m = 0.87 kg and is initially stretched to a length L = 6.8 m. The
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Answer:

1. v=14.2259\ m.s^{-1}

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Explanation:

Given:

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1.

\rm Speed\ of\ wave\ pulse=Length\ of\ slinky\div time\ taken\ by\ the\ wave\ to\ travel

v=\frac{6.8}{0.478}

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2.

<em>Now, we find the linear mass density of the slinky.</em>

\mu=\frac{m}{L}

\mu=\frac{0.87}{6.8}\ kg.m^{-1}

We have the relation involving the tension force as:

v=\sqrt{\frac{F_T}{\mu} }

14.2259=\sqrt{\frac{F_T}{\frac{0.87}{6.8}} }

202.3774=F_T\times \frac{6.8}{0.87}

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3.

We have the relation for wavelength as:

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