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
son4ous [18]
3 years ago
9

Malika is writing an essay about the Sun. Below is the first paragraph in the essay. The Sun is an average-size star that is loc

ated at the center of the solar system. This hot, glowing ball of gas has a diameter of 1,393,000 km. This means 109 Earths would fit side by side across the diameter of the Sun. At the surface, the Sun’s temperature is about 550 degrees Celsius. Earth is located just under 150 million kilometers from the Sun. Malika quickly realizes this paragraph contains an error. Which statement identifies the error? The Sun is a large star, not an average-size star. The Sun is not a glowing ball of gas—it is solid. The Sun’s surface temperature is about 5500 degrees Celsius. Earth is located over 300 million kilometers from the Sun.
Physics
2 answers:
joja [24]3 years ago
5 0

The answer would be:


<u>The Sun's surface temperature is about 5,500 degrees Celsius. </u>


The surface of the Sun is about 5,778 Kelvin. If you want to be exact the sun is 5,505 degrees Celsius and that's just the surface. The corona gets even hotter reaching about 10 million degrees Celsius. The other information about the Sun is correct.

harina [27]3 years ago
4 0

Answer: Option (c) is the correct answer.

Explanation:

Sun is a large star and as it is given that it's diameter is 1,393,000 km. Since there are nuclear reactions that take place inside the Sun, therefore, there is emission of lot of radiations.

As a result, lot of heat energy is there. So, the statement at the surface Sun’s temperature is about 550 degrees Celsius will be an error.

Thus, we can conclude that this error is identified by the statement the Sun’s surface temperature is about 5500 degrees Celsius.

You might be interested in
What tension would you need to make a middle c (261.6 hz) fundamental mode on a 1 m string (for example, on a harp)? the linear
Allisa [31]
The frequency of middle C on a string is
f = 261.6 Hz.

The given linear density is
ρ = 0.02 g/cm = (0.02 x 10⁻³ kg)/(10⁻² m)
   = 0.002 kg/m

The length of the string is L = 1 m.

Let T =  the tension in the string (N).
The velocity of the standing wave is
v= \sqrt{ \frac{T}{\rho} }

In the fundamental mode, the wavelength, λ, is equal to the length, L.
That is
Because v = fλ, therefore
\sqrt{ \frac{T}{\rho} } =f \lambda = fL \\\\ \frac{T}{\rho} = (fL)^{2} \\\\ T = \rho (fL)^{2}

From given information, obtain
T = (0.002 kg/m)*(261.6 1/s)²*(1 m)²
   = 136.87 N

Answer: 136.9 N (nearest tenth)

4 0
3 years ago
In comparing the Ptolemaic system to the Copernican system, neither is entirely correct since Ptolemy said the earth was at the
Nikitich [7]
In comparing the Ptolemaic system to the Copernican system, neither is entirely correct since Ptolemy said the earth was at the center and Copernicus said <span>the planets had circular orbits. This is correct</span>
5 0
2 years ago
A hydrogen atom in an excited state absorbs a photon of wavelength 411 nm. What were the initial and final states of the hydroge
Citrus2011 [14]

Answer:

The initial and final states of the hydrogen atom were n=2 and n=6 respectively.

Explanation:

We must first obtain the energy of the photon;

E= hc/λ

where;

h= Plank's constant = 6.6 * 10^-34 JS

c= speed of light = 3* 10^8 m/s

λ = wavelength of light= 411 nm = 411* 10^-9 m

Substituting values;

E = 6.6 * 10^-34 * 3* 10^8 / 411* 10^-9

E = 4.8 * 10^-19 J or 3.0 eV

But ;

En = 13.6/n^2

So E = En final - En initial

3.0  = -13.6(1/n^2final - 1/n^2initial)

If we substitute n^2final = 6 and n^2 initial = 2 then the RHS becomes approximately equal to the LHS

Therefore the initial and final states of the hydrogen atom were n=2 and n=6 respectively.

6 0
2 years ago
If the electric field at some point on the line between two charges is zero, what do you know about the charges?
insens350 [35]

Answer:

The charges have same sign

Explanation:

The total electric field at a point on the line between the two charges is given by the resultant of the two electric fields produced by the two charges, which means that we must take them considering their direction.

In order to have a total electric field of zero, the two fields must have equal magnitude and opposite direction. Let's analyze different cases. Remember we are analyzing the fields at a point P located between the two charges, so it is located on the right of the left charge and on the left of the right charge:

1- Charge on the left: positive, charge on the right: negative

At point P, the electric field produced by the left charge is to the right, while the electric field produced by the right charge is to the right also, so this configuration is NOT possible

2- Charge on the left: positive, charge on the right: positive

At point P, the electric field produced by the left charge is to the right, while the electric field produced by the right charge is to the left, so this configuration is possible

3- Charge on the left: negative, charge on the right: negative

At point P, the electric field produced by the left charge is to the left, while the electric field produced by the right charge is to the right, so this configuration is possible

4- Charge on the left: negative, charge on the right: positive

At point P, the electric field produced by the left charge is to the left, while the electric field produced by the right charge is to the left also, so this configuration is NOT possible

So, the only possible configurations are the ones where the two charges have same sign.

5 0
3 years ago
Which explanation best describes a wave?
vekshin1

Answer:

D

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • A 2.0 moles of a monatomic ideal gas expands isothermally from state a to state b, Pa = 600 Pa, Va = 3.0 m3, and Vb = 9.0 m3.
    7·1 answer
  • What is the half life of the cobalt-57 isotope
    9·2 answers
  • Which of the following is a unit of rotational speed?
    14·1 answer
  • An ideal spring obeys hooke's law: f = −bikx. a mass of m = 0.3 kg hung vertically from this spring stretches the spring 0.13 m.
    14·1 answer
  • Jupiter contains a number of small moons that are thought to be captured comets or material ejected by collisions with larger ob
    10·1 answer
  • Raw sewage is raised vertically by 5.49m in the amountof
    11·1 answer
  • what is the mechanical advantage of a crowbar when a worker uses 10N of force to pry open a window that has a resistance of 500N
    12·2 answers
  • A mule pulls a cart of milk 10 meters with a force of 50 Newton's.Calculate the work done by a mule
    5·2 answers
  • QUICK HELP ILL MARK U BRAINLIEST
    5·1 answer
  • What are the importance of wedge? <br>​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!