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3 years ago

PLEASE HELP!!!

Physics

2 answers:

NNADVOKAT [17]3 years ago

8 0

Answer:

sodium

Explanation:

yulyashka [42]3 years ago

3 0

<em>A. Sodium . . . Element #11 on the Periodic Table</em>; when combined with other stuff as a chemical compound, it can make salt, Drano, and Alka-Seltzer

B. Carbon Dioxide . . . compound, made of elements Carbon and Oxygen ; produced when wood or gasoline burns; comes out of your lungs when you breathe out; air has a little bit of it, which is getting to be too much

C. Dihydrogen Monoxide . . . compound, made of elements Hydrogen and Oxygen, usually known by its popular name: "Water".

D. Magnesium Sulfate . . . compound, made of elements Magnesium and Sulfur; I don't know anything about this compound.

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Ugo [173]

Answer:

A. h = 2.15 m

B. Pb' = 122 KPa

Explanation:

The computation is shown below:

a) Let us assume the depth be h

As we know that

$Pb - Pat = d \times g \times h \\\\ ( 119 - 101) \times 10^3 = 856 \times 9.8 \times h$

After solving this,

h = 2.15 m

Therefore the depth of the fluid is 2.15 m

Given that

height of the extra fluid is

$h' = \frac{2.35 \times 10^{-3}}{ area} \\\\ h' = \frac{2.35 \times 10^{-3}} { 66.2 \times 10^{-4}}$

h' = 0.355 m

Now let us assume the pressure at the bottom is Pb'

so, the equation would be

$Pb' - Pat = d \times g \times (h + h')\\\\Pb' = 856 \times 9.8 \times ( 2.15 + 0.355) + 101000$

Pb' = 122 KPa

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3 years ago

A person hits a 45-g golf ball. The ball comes down on a tree root and bounces

Verizon [17]

Answer:

Maximum height, h = 10 m

Explanation:

It is given that,

Mass of golf ball, m = 45 g = 0.045 kg

The ball comes down on a tree root and bounces straight up with an initial speed of 14.0 m/s.

We need to find the height the ball will rise after the bounce. It is based on the conservation of energy such that,

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$h=\dfrac{v^2}{2g}\\\\h=\dfrac{(14)^2}{2\times 9.8}\\\\h=10\ m$

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Answer:

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Explanation:

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Answer:

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