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Novay_Z [31]
3 years ago
12

Which kinds of objects emit visible light in the electromagnetic spectrum?

Physics
2 answers:
SVETLANKA909090 [29]3 years ago
5 0

Answer: The correct answer is relatively hot objects.

Explanation:

Electromagnetic spectrum is a continuum of all the electromagnetic waves. They are arranged according to frequency and wavelength.

All objects emit wave according to their temperature.

The relatively hot objects emit the visible light or ultraviolet radiations having higher frequencies while the relatively cold objects emit wave of lower frequencies such as radio wave. The visible lights in the electromagnetic spectrum is seen by naked eyes.

The wavelengths of the visible light lies between 400 nm to 700 nm.

Therefore, the correct answer is relatively hot objects.

Triss [41]3 years ago
3 0

Answer : Relatively hot objects

Explanation : We know that, the temperature of the objects is inversely proportional to their wavelengths. The objects emitting radiation in the visible region have short wavelength and hence are relatively hotter.

We know the range of wavelength of the visible spectrum is from 400 nm to 780 nm.





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Flash floods can cause vehicles to float and fill with water, trapping and drowning people. while especially dangerous at night
IceJOKER [234]
I think the answer is: 6 inches

On average, the distance between Car's engine to the ground is around 8-10 inches.. But for small cars, the distance between car's engine to the ground could be as low as 5 inches - 6 inches from the ground.

When the flood reach the car's engine level, the water will got into the engine and disrupt it function, causing the car became unable to work properly
3 0
3 years ago
Ionic solutes are considered strong electrolytes. What does this mean for the conductivity of the solution?
kondaur [170]

Ionic solutes are considered strong electrolytes. What does this mean for the conductivity of the solution?  


A) Strong electrolytes dissolve and completely dissociate in water providing charged ions to conduct electricity.  

B) Strong electrolytes dissolve and do not dissociate in water providing no charged ions to conduct electricity.  

C) Being a strong electrolyte refers the type of bonding and has no bearing on conducting electricity.  

D) Strong electrolytes do not dissolve in water and can not conduct electricity.  

                                          ANSWER:

A) Strong electrolytes dissolve and completely dissociate in water providing charged ions to conduct electricity.


8 0
4 years ago
Read 2 more answers
A 104.328-kg baserunner slides into home base. He starts his slide moving at 8.451 m/s and 6.596 m from home base; when he cross
JulijaS [17]

The coefficient of kinetic friction between the baserunner and the ground is 0.51.

<h3>Coefficient of kinetic friction </h3>

The coefficient of kinetic friction between the base runner and the ground is calculated as follows;

μ = a/g

where;

  • a is acceleration
  • g is gravity

v² = u² + 2as

a = (v² - u²)/(2s)

a = (8.451² - 2.322²)/(2 x 6.596)

a = 5 m/s²

μ = 5/9.8

μ = 0.51

Thus, the coefficient of kinetic friction between the baserunner and the ground is 0.51.

Learn more about coefficient of friction here: brainly.com/question/14121363

#SPJ1

7 0
2 years ago
Consider two tubes filled with water at the same height, one with fresh water and the other tube with salt water. The pressure i
Olegator [25]

Answer:

B

Explanation:

The correct option for the question is B that is salt water. In salt water, the density of water is higher so the pressure at the end of tube containing salt water will be greater. As according to the hydrostatic law the pressure at a given point will be directly proportional to the distance travelled as well.

3 0
4 years ago
A cylinder of gas at room temperature has a pressure . To p_{1} what temperature in degrees Celsius would the temperature have t
grandymaker [24]

In order to calculate the temperature, we need to know that temperature and pressure are directly proportional, that is, if the pressure increases, the temperature (in Kelvin) also increases in the same proportion.

So, first let's convert the temperature from Celsius to Kelvin, by adding 273 units:

\begin{gathered} K=C+273 \\ K=20+273 \\ K=293 \end{gathered}

Then, let's calculate the proportion:

\begin{gathered} \frac{P_1}{T_1}=\frac{P_2}{T_2} \\ \frac{p_1}{293}=\frac{1.5p_1}{T_2} \\ \frac{1}{293}=\frac{1.5}{T_2} \\ T_2=1.5\cdot293 \\ T_2=439.5\text{ K} \end{gathered}

Now, converting back to Celsius, we have:

\begin{gathered} C=K-273 \\ C=439.5-273 \\ C=166.5\text{ \degree{}C} \end{gathered}

So the temperature would be 166.5 °C.

6 0
1 year ago
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