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Gekata [30.6K]
3 years ago
10

Acrylic and PVC are both types of plastic, but they’re different compounds. Acrylic has the chemical formula C5O2H8 meaning it i

s made of 5 carbon atoms, 2 oxygen atoms, and 8 hydrogen atoms. PVC has the chemical formula C2H3Cl. Compare the masses of the atoms that make up these plastics and come up with an explanation as to why PVC is more dense than acrylic
Physics
1 answer:
LiRa [457]3 years ago
3 0

jegh[g31Answer:

Explanation:

grrrrebvhds

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Nitrogen
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4 years ago
I was having trouble with this problem, and problems like it: A 3.2 kg pelican, with a 1.73 kg fish in its mouth, is flying 1.52
Oduvanchick [21]

Answer:

28.1 m/s

Explanation:

u_x = Initial velocity of the fish = 1.52 m/s

y = Height of the bird = 40 m

a_y = Acceleration in y axis = 9.81\ \text{m/s}^2

u_y = Initial velocity in y axis = 0

y=u_yt+\dfrac{1}{2}a_yt^2\\\Rightarrow 40=0+\dfrac{1}{2}\times 9.81t^2\\\Rightarrow t=\sqrt{\dfrac{40\times 2}{9.81}}\\\Rightarrow t=2.86\ \text{s}

v_y=u_y+a_yt\\\Rightarrow v_y=0+9.81\times 2.86\\\Rightarrow v_y=28.057\ \text{m/s}

The final velocity in x direction will remain the same as the initial velocity as there is no acceleration in the x direction u_x=v_x=1.52\ \text{m/s}

Resultant velocity is given by

v=\sqrt{v_x^2+v_y^2}\\\Rightarrow v=\sqrt{1.52^2+28.057^2}\\\Rightarrow v=28.1\ \text{m/s}

The fish is moving at a velocity of 28.1 m/s when it hits the water.

6 0
3 years ago
Hi guys . I'm having some troubles with physics and chemistry .
Otrada [13]

Answer:

physics and math tutor

Save my exams

Explanation:

hii! for PTM(physics and math tutor) you simply type in the search bar for example in. physics Units and measurements past papers.Then the first option would be PTM(physics and math tutor) and you click on it and it would give you on the left side Revision Notes, flashcards and practice questions. This site has helped me so much and I hope this helps you too (by the way PTM has for all 3 sciences and math too) just simply type the lesson name along with past paper and click on the first link and you'll get yourself your answers!!!! hopefully this helps!:))

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3 years ago
7. How many forces are acting on this object? *<br> Fnorm<br> Ffrict<br> Fapp<br> Fgray<br> Å
faust18 [17]

Answer:

4

Explanation:

As you can see in the free body diagram there are 4 forces acting on the body.

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3 years ago
Which statement describe a closed circuit ​
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There are no statements shown?
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