2 years ago

Alli was in the park playing on the equipment. she noticed that on the highest slide she slides down

Physics

2 answers:

Jet001 [13]2 years ago

5 0

Explanation:

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LUCKY_DIMON [66]2 years ago

3 0

Answer:

Is this answer complete????

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Kellie found a sample of a pure element. She carefully studied the sample and made a list of its properties.

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2 years ago

A square piece of tin has 12 inches on a side. An open box is formed by cutting out equal square pieces at the corners and bendi

Citrus2011 [14]

Answer:

Explanation:

Given a square Piece whose side is 12 inches

Now square pieces are cut from each corner to make it a open box

Suppose x is the length of square piece at each corner

then

base square has a length of $12-2x$

Dimension of new box is $(12-2x)\times (12-2x)\times x$

Volume $V=(12-2x)\times (12-2x)\times x$

$V=\left ( 12-2x\right )^2\cdot x$

For maximum volume differentiate with respect to x we get

$\Rightarrow\frac{\mathrm{d} V}{\mathrm{d} x}=2\times \left ( 12-2x\right )\times \left ( -2\right )\cdot x+\left ( 12-2x\right )^2=0$

we get x=6 and 4 but at x=6 volume becomes zero therefore x=4 is valid

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$V=4^3$

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2 years ago

A roller coaster car has a mass of 290. kilograms. Starting from rest, the car acquires

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2 years ago

A girl throws a rock horizontally at 10 m/s from the top of a building, 22 m above street level. Assuming free fall conditions a

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Answer:21.18 m

Explanation:

Given

initial speed u=10 m/s

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time taken to complete 22 m

$h=ut+\frac{1}{2}at^2$