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Aleks [24]
3 years ago
10

What two things does the wavelength of peak of the blackbody

Physics
1 answer:
Georgia [21]3 years ago
8 0

Answer:

The correct option is;

c. Temperature and color

Explanation:

Based on Wien's Law which can be presented mathematically as follows;

\lambda _{max} = (0.29 \ cm \ K) / T

The wavelength of the peak of the blackbody curve tells the temperature and color.

An example is the Sun that  has a temperature of 5800 K, hence the peak wavelength is given by \lambda _{max} = (0.29 \ cm \ K) / 5800 = 0.00005 \ cm = 500 nano-meter from which the color can be deduced as 500 nano-meter is the wavelength of  yellow light.

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While filming an intense action sequence for the next James Bond movie, a controlled explosion detonates 1.3 km away from the ac
brilliants [131]

To solve this problem we must basically resort to the kinematic equations of movement. For which speed is defined as the distance traveled in a given time. Mathematically this can be expressed as

v = \frac{d}{t}

Where

d = Distance

t = time

For which clearing the time we will have the expression

t = \frac{d}{v}

Since we have two 'fluids' in which the sound travels at different speeds we will have that for the rock the time elapsed to feel the explosion will be:

t = \frac{1300m}{3000m/s}

t = 0.433s

In the case of the atmosphere -composite of air- the average speed of sound is 343m / s, therefore it will take

t = \frac{1300m}{343m/s}

t = 3.79s

The total difference between the two times would be

\Delta t = 3.79s-0.433s

\Delta t = 3.357s

Therefore 3.357s will pass between when they feel the explosion and when they hear it

8 0
4 years ago
Which best describes the definition for the atomic mass of an element?
mylen [45]
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7 0
3 years ago
If 60 L of a gas are at 4 atm and 27 C °, what pressure would it have if the volume is 40 L 127 C °?
iragen [17]

Answer:

8 atm

Explanation:

Ideal gas law:

PV = nRT

where P is pressure, V is volume, n is moles, R is universal gas constant, and T is absolute temperature.

If n is constant:

PV / T = PV / T

(4 atm) (60 L) / (27 + 273) K = P (40 L) / (127 + 273) K

0.8 atm = 0.1 P

P = 8 atm

5 0
4 years ago
Rank the average gravitational forces from greatest to least between (a) the Sun and Mars, (b) the Sun and the Moon, and (c) the
Vera_Pavlovna [14]

Answer:

b,c,a.

Explanation:

We know that mass of sun > mass of Earth> mass of mars>mass of mars.  

And Gravitation force F =\frac{GmM}{r^2}

G= gravitational constant

m= mass of lighter body

M= mass of heavier body.

r= distance between them.

Although the mass of earth is greater than that of moon , its distance from the sun is larger hence, gravitational force on moon by sun is greater than that on Earth.

Hence the correct order will be

b,c,a.

7 0
4 years ago
Which sections of the heating curve illustrate this process?
kirill115 [55]

Answer:

B followed by D

Explanation:

The heat energy absorbed at B goes into potential  energy that breaks the inter-molecular bonds and thus the constant temperature. Once the molecules have gained enough energy they escape the closely bonded  structure and thus are free to move in random directions due to high kinetic energy. At this point (part D)  an increase in heat energy leads to an increase in the kinetic energy leading to an increase in the temperature.

5 0
3 years ago
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