1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arisa [49]
4 years ago
9

Galaxy evolution is a very active area of research. Look for information on a future observatory/mission that will investigate g

alaxy evolution. White a short summary of one proposed mission. How big is the planned telescope? At what wavelengths will it look? When will it be built?
Physics
1 answer:
Maslowich4 years ago
3 0

The James Webb Space Telescope (JWST) is a space observatory developed among 20 countries, is being built and operated jointly by NASA, the European Space Agency and the Canadian Space Agency, to be the scientific successor of Hubble and Spitzer. The JWST will offer an unprecedented resolution and sensitivity, some of its main objectives is observe the formation of the first galaxies of the universe and study the formation and evolution of galaxies. The JWST will allow to observe wavelengths within the so-called near-infrared astronomy, but also the orange and red visible light. The importance of this spectrum range is due to the fact that the infrared light can penetrate dusty regions and reveal what is inside. It will be launched in March 2021, the dimensions of its main mirror are 20,197 m × 14,162 m (66.26 ft × 46.46 ft). The JWST will orbit the sun 1.5 million kilometers away from the Earth

You might be interested in
The chemical reaction that causes iron to corrode in air is given by
sergiy2304 [10]

Answer :

(A) The value of \Delta G^o at 298 K is, 1521.9 kJ

(B) The value of \Delta G^o at 3652 K is, -301.59 kJ

Explanation :

Part A :

\Delta G^o=\Delta H^o-T\Delta S^o

where,

\Delta G^o = standard Gibbs free energy  = ?

\Delta H^o = standard enthalpy = 1684 kJ = 1684000 J

\Delta S^o = standard entropy = 543.7 J/K

T = temperature of reaction = 298K

Now put all the given values in the above formula, we get:

\Delta G^o=(1684000J)-(298K\times 543.7J/K)

\Delta G^o=1521977.4J=1521.9kJ

Part B :

\Delta G^o=\Delta H^o-T\Delta S^o

where,

\Delta G^o = standard Gibbs free energy  = ?

\Delta H^o = standard enthalpy = 1684 kJ = 1684000 J

\Delta S^o = standard entropy = 543.7 J/K

T = temperature of reaction = 3652K

Now put all the given values in the above formula, we get:

\Delta G^o=(1684000J)-(3652K\times 543.7J/K)

\Delta G^o=-301592.4J=-301.59kJ

5 0
3 years ago
A temperature measuring device should be placed in the __________ area of the refrigerated holding unit.
STatiana [176]
<span>A temperature measuring device should be placed in the "warmest" area of the refrigerated holding unit. The reason for this is because all foods must be stored in the minimum temperature required. If not stored properly the foods become hazardous. It is important to place the thermometer in the accurate location in reference to this question it is in the warmest location. The reasoning behind this is that if placed in the coldest location it may not represent an accurate temperature based on the entire unit.</span>
6 0
4 years ago
(eText prob. 4.25 with some values changed) Air enters a diffuser of a jet engine operating at steady state at 2.65 psia, 389◦R,
krek1111 [17]

Answer:

V_2 = 45.44m/s

Explanation:

We have to many data in different system, so we need transform everything to SI, that is

P_1 = 2.65 Psi = 18.271 kPa\\T_1= 389\°R = 216 K\\V_1 = 869ft/s = 264m/s\\T_2 = 450\°R = 250K

When we have all this values in SI apply a Energy Balance Equation,

\dot{Q}_{cv}-\dot{W}_{cv}+\dot{m}[(h_1-h_2)+(\frac{V_1^2-V_2^2}{2})+g(z_1-z_2)]=0

Solving for V_2

V_2 = \sqrt{V_1^2+2(h_1-h_2)}

From the table of gas properties we calculate for T_1 = 216K and T_2 = 250K

h_1 = 209.97+(219.97-209.97)(\frac{216-210}{220-210})

h_1 = 215.97kJ/kg

For T_2;

h_2 = 250.05kJ/kg

Substituting in equation for V_2

V_2 = \sqrt{V_1^2+2(h_1-h_2)}

V_2 = \sqrt{265^2+2(215.97-250.05)*10^3}\\V_2 = 45.44m/s

4 0
3 years ago
Which nanotechnology product would most likely help the
KonstantinChe [14]

Answer: OLEDs

Explanation:

The nanotechnology uses the surface of the carbon materials to generate the electricity. The evaporation of water on the surface of carbon materials helps in generation of electrical energy due to generation of thermal energy.

OLEDs can be defined as solid-state devices that comprises of organic molecules like carbon that will create electricity by exposing a surface for generation of thermal energy.

5 0
4 years ago
Body types can be described as _____ (check all that are correct)Immersive Reader
rewona [7]
Apple, Pear, hourglass, bodybuilder, and rectangle.
4 0
3 years ago
Other questions:
  • Green plants convert light energy from the sun into ______. * a. gravitational potential energy b. chemical potential energy c.
    14·1 answer
  • What is the temperature –34c expressed in kelvins?
    6·1 answer
  • The sphere shown below is placed in a full overflow cup and sinks to the bottom. How much water is displaced by the sphere? the
    14·1 answer
  • What is the mass of a football player who weighs 1250 n.?
    11·1 answer
  • Pada setiap tumbukan berlaku hukum
    12·1 answer
  • 1. In a certain semiconducting material the charge carriers each have a charge of 1.6 x 10-19 C. How many are entering the semic
    6·1 answer
  • __5. The study of weather patterns can predict the trajectory and intensity of this
    9·1 answer
  • What is equall to E=MC​
    10·2 answers
  • An object is most likely to sink in water if
    5·2 answers
  • A certain ellipse has a semimajor axis with a length of 6.25 cm, and the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!