Kelly is sledding on a snowy hill in the winter. The energy the sled has as it slides down the hill is a form of

Physics

2 answers:

viva [34]3 years ago

8 0

Answer:

chemical energy

andrey2020 [161]3 years ago

6 0

Potential energy is the answer

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People cut down a forest to bulid a housing development which of the following describes how this action will likely affect the

Ratling [72]

Answer:

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3 years ago

The rising and setting of the Moon is mostly caused by *

frez [133]

Answer:

Hey mate......

Explanation:

This is ur answer.....

<h2>A. Rotation of Earth</h2>

The moon rises in the east and sets in the west, each and every day. It has to. The rising and setting of all celestial objects is due to Earth's continuous daily spin beneath the sky.

Hope it helps!

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3 years ago

Read 2 more answers

2. A 20 cm object is placed 10cm in front of a convex lens of focal length 5cm. Calculate

adoni [48]

Answer:

 » Image distance :

${ \tt{ \frac{1}{v} + \frac{1}{u} = \frac{1}{f} }} \\$

v is image distance
u is object distance, u is 10 cm
f is focal length, f is 5 cm

${ \tt{ \frac{1}{v} + \frac{1}{10} = \frac{1}{5} }} \\ \\ { \tt{ \frac{1}{v} = \frac{1}{10} }} \\ \\ { \tt{v = 10}} \\ \\ { \underline{ \underline{ \pmb{ \red{ \: image \: distance \: is \: 10 \: cm \: \: }}}}}$

 » Magnification :

• Let's derive this formula from the lens formula:

${ \tt{ \frac{1}{v} + \frac{1}{u} = \frac{1}{f} }} \\$

» Multiply throughout by fv

${ \tt{fv( \frac{1}{v} + \frac{1}{u} ) = fv( \frac{1}{f} )}} \\ \\ { \tt{ \frac{fv}{v} + \frac{fv}{u} = \frac{fv}{f} }} \\ \\ { \tt{f + f( \frac{v}{u} ) = v}}$