2 years ago

Why is Pluto considered less of an oddball planet now?

1 answer:

4 0

Answer:

The International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially Pluto meets all the criteria except one—it “has not cleared its neighboring region of other objects

Explanation:

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On a playground slide, a child has potential energy that decreases by 1000 J while her kinetic energy increases by 900 J. what o

mel-nik [20]

Answer:

Friction 100 j

Explanation:

Friction causes the inequality between PE and KE

100 J

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2 years ago

What is the best estimate of the frequency of the wave shown below

GrogVix [38]

Answer:

D. 2.5 Hz

Explanation:

Frequency = speed of wave / wavelength

= 335 /140 ( from graph)

= 2.4

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3 years ago

Which diagram represents an element that is likely to form covalent bonds?

ankoles [38]

Answer:

Ok look Im going try my best, and the answer that most likely looks like it can be correct is C the third picture i hope this is correct and helps bye bye:3

also do you wanna get some points >w>

Explanation:

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3 years ago

Read 2 more answers

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sasho [114]

I think its B or D, most likely D.

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3 years ago

What is the efficiency (w/qh) of an ideal carnot heat engine operating between a hot region at t= 400 k and a cold one at t= 300

Vinvika [58]

The efficiency of an ideal Carnot heat engine can be written as:
$\eta = 1- \frac{T_{cold}}{T_{hot}}$
where
$T_{cold}$ is the temperature of the cold region
$T_{hot}$ is the temperature of the hot region

For the engine in our problem, we have $T_{cold}=300 K$ and $T_{hot}=400 K$ , so the efficiency is
$\eta= 1 - \frac{300 K}{400 K}=0.25$

4 0

3 years ago