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3 years ago

Sand dunes during the Dust Bowl are an example of:

Physics

1 answer:

choli [55]3 years ago

5 0

Sand dunes during the Dust Bowl are an example of windward.

The sand dunes are formed due to high movement of wind in the deserts which make dunes in the direction where wind is moving. Windward refers to facing the wind or situated on the side facing the wind so in those regions where the wind moves bring sand with itself and make dunes in that area so we can conclude that sand dunes are formed in the windward regions.

Learn more: brainly.com/question/24879138

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Heat and light energy

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3 years ago

A 3.59 kg block is released from rest 53.0 m above the ground. When it has fallen 21.3 m, what is its kinetic energy

Juli2301 [7.4K]

<h3><u>Answer:-</u></h3>

$\implies$ 1115.2 Joules

<h3><u>Given :- </u></h3>

$\red{\leadsto}\:$ $\textsf{Height\: at \:rest\:}$ $\sf,h_2= 53.0m$

$\green{\leadsto}\:$ $\textsf{Height\: to\:which\;block\:}$ $\sf,h_1= 21.3$

<h3><u>Solution</u> :-</h3>

$\maltese$ As the block falls , the change in potential energy will be converted into kinetic energy

$\leadsto$ Potential Energy at rest at height, $h_2$ = $\sf mgh_2$

$\leadsto$ Potential Energy when fell at height, $h_1$ = $\sf mgh_1$

$\\$

$\leadsto$ Kinetic energy= Change in Potential energy = = $\sf mgh_2-mgh_1$

$\begin{gathered}\implies\quad \sf mg(h_2-h_1) \\\end{gathered}$

$\begin{gathered}\implies\quad \sf mg(53.0-21.3) \\\end{gathered}$

$\begin{gathered}\implies\quad \sf 3.59 \times 9.8\times (53.0-21.3) \\\end{gathered}$

$\begin{gathered}\implies\quad \sf 3.59 \times 9.8\times 31.7\\\end{gathered}$

$\begin{gathered}\implies\quad \boxed{\sf{1115.2\: Joules}}\\\end{gathered}$

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3 years ago

Joe lives 100 miles away from Bill . What is Joes average speed if he reaches Bills home in50's?

Norma-Jean [14]

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