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3 years ago

The stars in the model below are arrange by.... *

Physics

1 answer:

brilliants [131]3 years ago

5 0

Answer:

where is the picture of star

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Is pressure water a acid , basic or natural substance

Yakvenalex [24]

Anyway, water acts as a base and as a acid depending on what it is reacting with. Molecules that do this are called amphiprotic.

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4 years ago

4. [01.03]

Likurg_2 [28]

Skates. An object in motion stays in motion unless an equal amount of force is applied back. She put out more force than what she was giving so it pushed her back

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3 years ago

a girl rides a sled down a frozen hill. she starts from rest at the top of the hill and reaches a speed of 16 m/s at the bottom

Zolol [24]

13.06m

Explanation:

Given parameters:

initial velocity u = 0

final velocity v = 16m/s

Unknown;

height of the hill = ?

Solution:

We are going to apply one of the laws of motion to solve this problem;

V² = U² + 2gH

where V is the final velocity

U is the initial velocity

g is the acceleration due to gravity = 9.8m/s²

H is the height

since initial velocity is zero;

V² = 2gH

To find the height;

H = $\frac{V^{2g} }{y}$

H = $\frac{16^{2} }{2 x 9.8}$ = 13.06m

learn more:

Velocity brainly.com/question/2706228

#learnwithBrainly

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3 years ago

A box contains about 5.54 1021 hydrogen

Aleks [24]

Answer: $E=33.71\ J$

Explanation:

Given

No of atoms of hydrogen $N=5.54\times 10^{21}$

Temperature of room $T=21^{\circ}\approx 294\ K$

Thermal energy of the atoms is given by

$E=\frac{3}{2}NkT$

where k=boltzmann constant

$E=\frac{3}{2}\times 5.54\times 10^{21}\times 1.38\times 10^{-23}\times 294$

$E=33.71\ J$

Hence the energy of the atoms is $33.71\ J$

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3 years ago

Which of the following is an example of a technological solution to water pollution in a local pond?

dexar [7]

Sure: ths is called protyping and lets yu get a sende fo the effeciveness tof the cahnge and the cost of the change.

<span>A - just like the scientific principle syu what to know what other know or have learned. Example would it be silly to build a nuclear power de-salinatiztion plant when a dam in the mountains wuld dothe savme thng and perhaps have the advatage of using local labor and preveinting floods and givng of hydro eletic power. </span>

<span>A a process is a technological soultion it uses tools, machines, chemical to effect an otu come.</span>

8 0

3 years ago