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san4es73 [151]
2 years ago
12

Why do natural polymers not pose as much of an issue in landfills as synthetic polymers?

Physics
1 answer:
viva [34]2 years ago
8 0

Answer:

Most polymers, including poly(ethene) and poly(propene) are not biodegradable . This means that microorganisms cannot break them down, so they: cause a litter problem if disposed of carelessly. last for many years in landfill sites.

Explanation:

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How to classify an inner planet vs. outer planet
zvonat [6]
Outer planets are farther away and made up of gases. Inner planets closer. It's pretty much self explanatory. Hope this helps.
7 0
4 years ago
Runner 1 has a velocity of 10 m/s west. Runner 2 has a velocity of 7 m/s east. From the frame of reference of runner 2, what is
Vsevolod [243]

Answer:

<em>17 m/s west</em>

Explanation:

Runner 1 has velocity = 10 m/s west

runner 2 has velocity = 7 m/s east

From the frame of reference of runner 2, we can imagine runner 2 as standing still, and runner 1 moving away from him, towards the west with their combined velocity of

velocity = 10 m/s + 7 m/s = <em>17 m/s west</em>

5 0
3 years ago
Suppose that on a routine trip around the galaxy, your dog puts his head out of the spacecraft window (as dogs often do). The so
neonofarm [45]

Answer: Yes, the dog's head will burn

Explanation:Solar winds are strongly destructive magnetically charged high energy winds. Satellite communication on earth and the occasional geomagnetic storm near the poles are the major disruptive effects caused by solar winds on earth.

Since solar winds are streams of charged particles released from the upperparts of the Sun, called the "corona". This plasma mainly consists of electrons, protons and alpha particles with kinetic energy between 0.5 and 10 keV. Instilled within the solar-wind plasma is the interplanetary magnetic field.

If the dog holds it's breath the heat wave would burn it's head but not outrightly because the breath has ceased for some seconds and it can't absorb the much heat of the solar wind into it's nostrils. The effect of holding its breath would still be disastrous but not as the first case.

7 0
3 years ago
A person with a mass of 72 kg is riding a bicycle is accelerating at a rate of 5m/s on a horizontal surface. What is the weight
nikklg [1K]

Answer:

w = 706.32 [N]

Explanation:

The force due to gravitational acceleration can be calculated by means of the product of mass by gravitational acceleration.

w = m*g

where:

w = weight [N] (units of Newtons)

m = mass = 72 [kg]

g = gravity acceleration = 9.81 [m/s²]

Then we have:

w = 72*9.81\\w = 706.32 [N]

7 0
3 years ago
A motor does 1000J of work in 18 seconds. What is the power of the<br> motor?
solong [7]

Answer:

55.56 watt

Explanation:

Work (W) = 1000 J

time (T) = 18 sec

power (P) = ?

We know power is the rate of doing work so

p = w / t

= 1000 / 18

= 55. 56 watt

7 0
3 years ago
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