100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
EAPS 106|95 Exam 3 Questions With Answers|2025 $7.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. EAPS 106
  4.  
  5. EAPS 106

Exam (elaborations)

EAPS 106|95 Exam 3 Questions With Answers|2025
 0 purchase
  • Course
  • EAPS 106
  • Institution
  • EAPS 106

How we can simulate gravity on a spacecraft. - ️️By rotating the spacecraft, generating a centrifugal force that simulates gravity. "Down" always points outwards from the center of rotation How we know that the Oort Cloud is a sphere. - ️️Long period comets come form the oort cloud, a sph...

[Show more]

Preview 3 out of 17  pages

Document information

  • November 11, 2024
  • 17
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

Written for

  • EAPS 106
  • EAPS 106

Seller

avatar-seller
jackline98

Reviews received

Content preview

EAPS 106|95 Exam 3 Questions
How we can simulate gravity on a spacecraft. - ✔ ✔ By rotating the spacecraft,
generating a centrifugal force that simulates gravity.

"Down" always points outwards from the center of rotation

How we know that the Oort Cloud is a sphere. - ✔ ✔ Long period comets
come form the oort cloud, a spherical collection of billions of small icy objects. We
know it's a sphere because long period comets come at us from all directions.

Why are there more impact cheaters on the moon today than on the earth? - ✔
✔ The moon has no erosional processes to erase old impact craters

Why comets are referred to as dirty ice balls. - ✔ ✔ Because they are mixture
of ice and rock

Why do iron meteorites exist? - ✔ ✔ From impacts that break up big asteroids
that have differentiated into an iron core and a stony mantle.

Why fighting smaller fires lead to much bigger ones. - ✔ ✔ If there are no
smaller fires to remove the underbrush and fuel that builds up, they can lead to
massive fires due to the built up fuel. In typical forests, every year without fire
adds the equivalent of 300 gallons of gasoline per acre.

Why fire retardants dropped from air tankers are colored red. - ✔ ✔ Dyed so
that they can see where they've already dropped

Why Haley's comet is the most famous of all comets. - ✔ ✔ Because it is a
short-period comet that comes into view about once in a lifetime (~75 years)

Only short-period comet visible to the naked eye

Last appeared in 1986 will next appear in 2061

Its passage has been recorded since at least 240 B.C.E

,Why impact craters are almost always round. - ✔ ✔ Impact craters are almost
always round because the impact shock wave travels outward equally in all
directions regardless of the impact angle.

Why is Mars the most explored planet? - ✔ ✔ Extraterrestrial life

Why Mars is the most explored planet. - ✔ ✔ It holds the greatest chance of
finding evidence of past or present extraterrestrial life

Why the highest percentage of human ignited fires occur in the southeastern U.S.
- ✔ ✔ The southeast is hot and densely populated.

Why the International Astronomical Union (IAU) did not want Pluto to be a
planet. - ✔ ✔ "If pluto could stay, you logically have to let the number of
planets rise to 24 or 25, with the possibility of 50 or 100 within the next decade.
Do we want schoolchildren to have to remember so many? no, we want to keep
the numbers low." -Gareth Williams, associate director of the IAU's Minor Planet
Center.

In general, how do planetary scientists classify Pluto? - ✔ ✔ a planet

That comet dust jets do not turn on and off with the comet's sunrise and sunset. -
✔ ✔ Jets are unrelated to sunrise and sunset debris

Turn on Sporadically and last short time periods. They can turn on and off in 10s
of minutes even though the rotation time is much larger

Not sure what initiates them, but could be landslides pushing debris into gas jets

That cryovolcanoes on Saturn's moon Enceladus dumps material from its
subsurface ocean into Saturn's E-ring. - ✔ ✔ The erupted water freezes and
feeds Saturn's E-ring. Subsurface ocean revealed by water geysers

That planet size also matters for a planet to be considered potentially habitable. -
✔ ✔ Planet size can affect the atmosphere it can hold, too small and can't
hold enough, too big and it'll hold things like hydrogen. Needs to be relatively
Earth sized

, .8 - 1.5 Earth's radius

That there are more estimated Earth-like planets than grains of sand on Earth. -
✔ ✔ For every grain of sand on earth, there are 50 Earth-like planets.
Estimated 500 stars for every grain of sand on Earth, 500 times 8x10^18

That there are other objects of similar size to Pluto in the Kuiper Belt. - ✔ ✔
Yes there is, started to discover other objects in the Kuiper belt in the 1990's
with better telescopes. Eris, about the same size as Pluto, is named for the Greek
goddess of chaos, strife, and discord, appropriate since it kicked off the debate
about the definition of a planet and the demotion of Pluto.

The advantage that a helitankers have over air tankers. - ✔ ✔ Air tankers

- with wheels have to return to some airport to refill their tanks, although
seaplanes are able to refill in lakes or reservoirs

- Have a higher capacity of water or fire retardant

Helitankers

- can refill on the go from a pond, lake, pool, etc. - smaller bodies of water than
planes

- can perform more targeted drops

- can also carry water cannons similar to fire trucks

- Shorter range to drop

- Smaller capacity

the best strategy to survive an extinction level size asteroid or comet on an
intercept course with Earth. - ✔ ✔ The best collision avoidance strategies
involve deflection.

Kinetic impact: crash a heavy spacecraft into it to alter trajectory.

Spacecraft propulsion: create a small sustained thrust to alter trajectory.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller jackline98. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $7.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

69252 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling
$7.99
  • (0)
Add to cart
Added