The peak intensity of radiation from Star Beta is 350 nm. What is the average surface temperature of Star Beta rounded to the nearest whole number? 121 K 6,547 K 8,285 K 10,348 K

Answers

Answer 1

Answer: Wien's Displacement Law is:
peak x surface temperature = 2.898 x 10^-3 m K

So,
surface temperature = 2.898 x 10^-3 m K / peak = 2.898 x 10^-3 m K / 350 x 10 -9 m
surface temperature = 8280 K

The closest to the choices is 8285 K.

Answer 2

Answer:

Answer:

8285 K.

Explanation:

Related Questions

A car traveling in a straight line has a velocity of 3.79 m/s at some instant. After 5.4 s, its velocity is 11.9 m/s. What is its average acceleration in this time interval? Answer in units of m/s 2
A 25.0-meter length of platinum wire with a cross-sectional area of 3.50 × 10^−6 meter^2 has a resistanceof 0.757 ohm at 20°C. Calculate the resistivity of the wire. [Show all work, including the equation and substitution with units.]
5. A graduated syringe contains air. It is put in a freezer to cool it down. When it is removed from the freezer the piston has moved inwards. A. B. C. D. cm 3 cm 0.6 kg/m³ 1.2 kg/m³ 2.4 kg/m³ 4.8 kg/m³ 2 3 The density of the air in the syringe when cooled is 2.4 kg/m³. What was the density of the air at room temperature? piston syringe when cooled syringe at room temperature
The diagram shows the electric field in the vicinity of a charge. At which point is the electric field strongest? 1) W 2) X 3)Y 4)Z
What are the three types of seismic waves?

What is the frequency of a sound wave commonly called?

Answers

Frequency of a sound wave is commonly referred to as pitch. That is the specialized name for frequency of a sound wave.

Just remember it as pitch.

A species of insect is newly introduced into the United States from the Philippines. This insect becomes established, laying its eggs on the leaves of oak trees. How can a biologist determine if the relationship between the insect and the oak tree is commensalism, mutualism, or parasitism?

Answers

Commensalism describes the interaction between the insect and the oak tree.

What is commensalism?

It is a type of biological interaction between two species in which one of the interacting species is benefitted while the other species is unaffected.

How is the above interaction commensalism?

Since the insect gets a safe place to lay its egg it gains from this interaction while the tree is unaffected.

When will this interaction be a mutualism interaction?

When both the organisms benefit from the interaction.
If the insect helps in the pollination of the tree while the insect gets a safe place to lay its egg.

When will this interaction be a parasitic interaction?

When one of the organism benefit at the expense of the other.
For example, If the insect sucks the sap of the tree on which it lays its egg. The insect benefits while the tree is harmed.

To learn more about biological interaction, species, and commensalism here,

brainly.com/question/14224704

#SPJ2

Answer:

its D!!!

Explanation:

If the insect benefits and the tree neither benefits nor is harmed, the relationship is commensalism.

If a train is 100 km away, how much sooner would you hear the train coming by listening to the rails (iron) as opposed to listening for it standing by the track? In other words, how much faster will the sound travel through the iron rails than through the air? Assume the air temperature is 0°C.Sound will reach you ______ seconds sooner.

302

324

280

Answers

Wellll . . . it's doubtful that you'd hear the sound of a train
from 100 km away (about 62 miles), but this is a fun problem
so let's go through it just for the math.

Online, I looked up the speed of sound in various materials.
Here's what I found:

-- Speed of sound in normal air . . . . . 343 m/s

-- Speed of sound in iron . . . . . 5,130 m/s

But let's go a little farther !
Rails used to be made of cast iron or wrought iron.
But now they're made of hot rolled steel.

-- Speed of sound in steel . . . . . 6,100 m/s

   Time to cover the distance = (distance) / (speed)

   Time through air = (100,000 m) / (343 m/s)

   = 291.5 sec = 4 minutes 51.5 seconds

Time through old iron rails = (100,000 m) / (5,130 m/s)

   =   19.5 seconds (272 sec sooner)

Time through new steel rails = (100,000 m) / (6,100 m/s)

   = 16.4 seconds   (275 sec sooner)

Final answer:

The speed of sound varies in different mediums. In Physics, the speed of sound in air at 0°C is about 331.5 m/s, while in iron it's about 5130 m/s. If a train is 100 km away, the sound travelling through the iron rails would reach you approximately 282 seconds sooner than the sound through the air.

Explanation:

In Physics, the speed at which sound travels depends on the medium through which it's travelling. The speed of sound in air at 0°C is approximately 331.5 m/s. On the other hand, the speed of sound in iron is about 5130 m/s.

To determine how much sooner you would hear the train, we need to calculate the difference in time it takes for the sound to travel through these two mediums.

When the train is 100 km away, we get the following:

Time through air: 100000 m / 331.5 m/s = 301.66 seconds
Time through iron: 100000 m / 5130 m/s = 19.49 seconds

The difference is, therefore, approximately: 301.66 - 19.49 = 282.17 seconds. Thus, the sound will reach you 282 seconds sooner if you listen to the rails rather than the air.

Learn more about Speed of Sound here:

brainly.com/question/35989321

#SPJ12

A container has a mass of 150 g. What is the masser of a liquid if the container plus the liquid has a mass of 185 g?

Answers

All we have to do is subtract
sooooo
185 - 150 = 35
so the mass of the liquid is 35g
:)
:P
:D

A pair of scientists proposes two different theories to explain the same set of observations. Which of the following best explains the value of these competing theories?Competing theories can be a source of new, testable ideas.
Competing theories are necessary to transform a theory into a law.
Competing theories generate controversy that helps popularize ideas.
Competing theories allow scientists to combine the most interesting aspects of both theories.

Answers

Answer:

Competing theories can be a source of new, testable ideas.

Explanation:

Theory is the set of knowledge that seeks to explain, with a high degree of accuracy, all-encompassing phenomena of nature, that is, it is different from the meaning of the word "theory" used in everyday life, when we say that something "is only a theory "in the sense that it is a mere speculation.

Competing theories present a much larger set of knowledge, which gives the universe a source of new and testable ideas

Competing theories can be a source of new, testable ideas.

For which does the United States use oil the most? A. electric power

B. transportation

C. heating

D. industry

Answers

b, because people buy cars everyday

Other Questions

At a certain elevation, the ________ , the air becomes saturated and water-vapor molecules ________.

If you wanted to increase the voltage, which would you use?a. generator b. step-up transformer c. step-down transformer d. motor e. detector

You are sitting in a chair on an elavator. The elavator accelerates downward, you and the chair land on the cround with the chair landing first and then you on the chair.Explain the Net Forces at 3 points for each objectThe points are: Before the Elevator Accelerates Downward, In Freefall, At ImpactAnalyze whether the Normal Force would need to increase, and where the direction of the net force is for each object.

A 5 kg box is sliding across a level floor. The box is acted upon by a force of 27 newtons east and a frictional force of 17 newtons west. What is the magnitude of the acceleration of the box? Type only numbers. Do not include the units of m/s2.