3 years ago

7/10x4/5 in its simplest form

Mathematics

1 answer:

Fantom [35]3 years ago

8 0

Answer:

14/25

Step-by-step explanation:

7/10 x 4/5

28/50

14/25

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Step-by-step explanation:

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3 years ago

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Answer:

$\Huge \boxed{\mathrm{9}}$

Step-by-step explanation:

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Dividing first.

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3 years ago

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3 years ago

You place the spring vertically with one end on the floor. You then drop a book of mass 1.50 kg onto it from a height of 0.900 m

Alex777 [14]

Answer:

The value of the maximum distance the spring will be compressed

x = 0.143 m= 14.3 cm

Step-by-step explanation:

Given data

Mass m = 1.5 kg

h = 0.9 m

k = 1500 $\frac{N}{m}$

Since the book is released from a height h = 0.9 m above the top of the spring. so the total distance

y = h + x

Now in that case for the spring

$mg y= \frac{1}{2} k x^{2}$

$mg(h +x) = \frac{1}{2} k x^{2}$

By rearranging the above equation we get

$k x^{2} - 2mgx - 2mg h = 0$

Put all the values in above equation we get

$1500x^{2} - 29.43 x - 26.48 = 0$

By solving the above equation we get

x = 0.143 m= 14.3 cm

This is the value of the maximum distance the spring will be compressed.

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3 years ago