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3 years ago

Which materials, including polystyrenes, can be recycled?

Physics

2 answers:

True [87]3 years ago

4 0

Polymers as they are made from plastic

Oksanka [162]3 years ago

4 0

Answer:

Polymers , thermoplastics.

Explanation:

Polymers like thermoplastic polymers can be recycled because they can be melted easily but thermosetting polymer can not be recycled because of their high melting point. Ceramics due to their high melting point are not recycled.

Thermoplastic composites can be recycled but thermoseting composites are not recycled. Composites are mix of two or more type of material having different physical and chemical properties.

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Acceleration due to gravity on the moon is 1.6m/s^2 or about 16% of the value of gg on Earth. If an astronaut on the moon threw

xxTIMURxx [149]

To solve this problem it is necessary to apply the concepts related to the conservation of Energy. Mathematically the conservation of kinetic energy must be paid in the increase of potential energy or vice versa. This expressed in algebraic terms is equivalent to

Kinetic Energy = Potential Energy

$\frac{1}{2}mv^2 = mgh$

Where

m = Mass

v = Velocity

g = Gravity

h = Height

As the mass is the same then we have to

$\frac{1}{2} v^2 = gh$

Rearrange to find v,

$v = \sqrt{2gh}$

Our values are given as

$g = 1.6m/s^2$

$h = 7.8m$

Therefore replacing we have

$v = \sqrt{2(1.6)(7.8)}$

$v = 4.99m/s$

Hence the velocity at the moon would be 4.99m/s

The only direct affectation is that concerning the Resistance or drag force generated by a fluid - such as air in the ground - that can diminish / sharpen the direct effects of gravity. Disregarding the resistance of the air, as we can see in the equation previously given, there should be no affectation because the speed depends on the gravity and height.

5 0

3 years ago

PHYSICS can somebody please answer this

tankabanditka [31]

Yes the answer is recoiled of the Gaian and the hash of attorney then the distance must be bábale of the original number

8 0

3 years ago

For your senior project, you are designing a Geiger tube for detecting radiation in the nuclear physics laboratory. This instrum

Paha777 [63]

Answer:

Maximum linear charge density = 84.14 nC/m

Explanation:

Looking at this question, The electric field of a line charge of infinite length is given by : Er = (1/(2πεo)) x (λ/r)

r = the distance from the center of the line of charge

λ = the linear charge density of the wire.

Now looking at the equatiom, due to the fact that Er varies inveresely with r, its maximum value will occur at the surface of the wire where r = R, the radius of the wire:

And so, Emax = (1/(2πεo)) x (λ/R)

Let's make λ the subject of the equation and we get;

λ = 2πεo(REmax)

From the question, R = 0.55/2 = 0.275cm

Also, Emax = 5.50 × 10^(6) N/C

Let's take the value of the electric constant to be εo = 8.854 x 10^(-9) C^(2) / Nm^2

R = 0.275mm = 0.000275m

Plugging these values into the equation, we get;

λ = 2π x 8.854 x 10^(-12) x 0.000275 x 5.50 × 10^(6) = 84.14 nC/m

4 0

3 years ago

Which of these forces pull or push upward, and which pull or push downward? Explain.

PtichkaEL [24]

Answer:

A force is a push or pull that acts upon an object as a result of that objects interactions

Explanation:

8 0

3 years ago

Is there a link between the number of bulbs and current drawn from the power pack?

LuckyWell [14K]

Answer:

Yes there is if number of bulb is high the bulbs wouldn't glow much brighter

Explanation:

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3 years ago