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Sholpan [36]
4 years ago
9

Not sure how to do this. Please help

Physics
1 answer:
LiRa [457]4 years ago
6 0
Just choose the direction and write down the force shown in the arrow. It's too blurry. Can't do it for u. Sorry.
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the force shown in figure 7-15 moves an object from x=0 to x=0.75 m. How much work is done by the force?
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\\ \sf\Rrightarrow \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}

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3 years ago
The speed of light in air is 3 x 108 m/s. The speed of light in ice is 2.29 x 108 m/s. What is the refractive index from air to
Studentka2010 [4]

Answer:

η = 1.31

Explanation:

The formula for the refractive index of from air to some other medium is given by the following formula:

\eta = \frac{c}{v}\\

where,

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Therefore, using these values in the equation we get:

\eta = \frac{3\ x\ 10^8\ m/s}{2.29\ x\ 10^8\ m/s} \\

<u>η = 1.31</u>

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3 years ago
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