The European Space Agency launched a probe called Rosetta in March 2004 . In August 2014 , Rosetta reached its destination: a comet called 67P/Churyumov-Gerasimenko . Rosetta is the first spacecraft to rendezvous with a comet . It contained a lander craft, called Philae. The Philae has several scientific instruments onboard , used to study the comet . ALICE is an ultraviolet imaging spectrograph, used to search for noble gases in the comet core . The MIRO measures microwave emissions in an attempt to measure substances like water, ammonia, or carbon dioxide . MIDAS is a dust analysis instrument, which will collect dust particles from the comet . Complete the table by determining the required information about these instruments. Note that you do not need to complete the entire table, just the values indicated. The gravity of Comet 67P is estimated at 1 millimeter per second squared [mm/s 2 ]. The gravity of Mars is 3.71 meters per second squared [m/s 2 ]. Mass on .... [kg] Weight on….[lb f ] Instrument Earth Mars Comet 67P Earth Mars Comet 67P ALICE (a) (b) 6.8 (c) MIRO (d) (e) 15.4 MIDAS 8.3 (f) (g) (h)
The European Space Agency launched a probe called Rosetta in March 2004 . In August 2014 , Rosetta reached its destination: a comet called 67P/Churyumov-Gerasimenko . Rosetta is the first spacecraft to rendezvous with a comet . It contained a lander craft, called Philae. The Philae has several scientific instruments onboard , used to study the comet . ALICE is an ultraviolet imaging spectrograph, used to search for noble gases in the comet core . The MIRO measures microwave emissions in an attempt to measure substances like water, ammonia, or carbon dioxide . MIDAS is a dust analysis instrument, which will collect dust particles from the comet . Complete the table by determining the required information about these instruments. Note that you do not need to complete the entire table, just the values indicated. The gravity of Comet 67P is estimated at 1 millimeter per second squared [mm/s 2 ]. The gravity of Mars is 3.71 meters per second squared [m/s 2 ]. Mass on .... [kg] Weight on….[lb f ] Instrument Earth Mars Comet 67P Earth Mars Comet 67P ALICE (a) (b) 6.8 (c) MIRO (d) (e) 15.4 MIDAS 8.3 (f) (g) (h)
Solution Summary: The author explains the formula used to calculate the required values for the instruments.
The European Space Agency launched a probe called Rosetta in March 2004. In August 2014, Rosetta reached its destination: a comet called 67P/Churyumov-Gerasimenko. Rosetta is the first spacecraft to rendezvous with a comet. It contained a lander craft, called Philae.
The Philae has several scientific instruments onboard, used to study the comet. ALICE is an ultraviolet imaging spectrograph, used to search for noble gases in the comet core. The MIRO measures microwave emissions in an attempt to measure substances like water, ammonia, or carbon dioxide. MIDAS is a dust analysis instrument, which will collect dust particles from the comet.
Complete the table by determining the required information about these instruments. Note that you do not need to complete the entire table, just the values indicated. The gravity of Comet 67P is estimated at 1 millimeter per second squared [mm/s2]. The gravity of Mars is 3.71 meters per second squared [m/s2].
The sun is the only star whose size we can easily measure directly; astronomers therefore estimate the sizes of other stars using Stefan's law.
The spectrum of the star Betelgeuse, plotted as a function of energy, peaks at a photon energy of 0.8 eV, while Betelgeuse is approximately 10,000 times as luminous as the sun. How does the radius of Betelgeuse compare to the sun's radius? Why is Betelgeuse called a "red supergiant"?
3¹
TE
MY NOTES
ASK YOUR TEACHER
SAMC)
If the RR Lyrae stars in a globular cluster have average apparent magnitudes of +16, how far away (in pc) is the cluster? (Hints: See the following figure, and use the magnitude-distance
formula: d = 10(my-Mv+5)/5.)
Absolute magnitude
pc
6
0
0.3
Type I
(classical)
Cepheids
Type II
Cepheids
RR Lyrae stars
10
Pulsation period (days)
30
104
103
10²
100
Luminosity, L/L
Ⓡ
When Cassini, a Saturn-orbiting spacecraft, made its first flybys of Enceladus in 2005, what unusual discovery did it make, and what did this imply?
a Enceladus turned out to have a system of rings around it, much like Saturn has, making it the first known moon with its own ring system.
b Saturn's magnetic field was disrupted near Enceladus, suggesting the tiny moon might have an atmosphere, which in turn suggested material might be emitted by Enceladus in some way.
c Cassini discovered that Enceladus is being constantly bombarded by asteroids and meteoroids, suggesting it has a much larger mass (and thus higher gravity) than had been suspected.
d Enceladus was orbiting Saturn much faster than it should, based on Kepler's laws, suggesting that some mysterious force was pushing it around its orbit.
Chapter 8 Solutions
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
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Mechanical, Physical, Thermal, Electrical and Magnetic Material Properites; Author: Engineers Academy;https://www.youtube.com/watch?v=M23f8euzW7Q;License: Standard YouTube License, CC-BY