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Novosadov [1.4K]
3 years ago
6

A circuit contains three light bulbs in parallel. After observation, a fourth light bulb is added, also in parallel. How does th

e intensity of the four light bulb circuit compare with the intensity of the three light bulb circuit? A) it is lower in intensity. B) it is higher in intensity. C) it has the same intensity. D) the circuit is not operational.
Physics
2 answers:
uranmaximum [27]3 years ago
6 0
It has the same intensity.
damaskus [11]3 years ago
4 0

Answer:

C- It has the same intensity

Explanation:

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Solar energy can be changed into thermal energy without any work being done. true or false
Black_prince [1.1K]

Answer:

True

Explanation:

3 0
3 years ago
Describe the electromagnetic spectrum, electromagnetic waves, and give two examples of different types of electromagnetic waves.
Alex

Answer:

Radio Wave

Micro Wave

Explanation:

Electromagnetic waves are transverse waves composed by the perpendicular oscillating electric and magnetic fields.

EM waves have both Electrical and magnetic features.

they travel in the velocity of light (3*10⁸ ms⁻¹)

Electromagnetic spectrum is obtained according to their wave length and the frequency. Due to wave length range it's categorized. Here is the decreasing  order of wave length and increasing order  of different wave types in electromagnetic spectrum

  • Radio Wave
  • Micro Wave
  • IR wave
  • Light Wave
  • UV rays
  • X rays
  • Gamma rays
  • Cosmic rays

5 0
3 years ago
Atoms with the same number of protons but with different electrical charges _____.
mash [69]

Answer:

Atoms with the same number of protons but with different electrical charges are different ions

Explanation:

Ions are defined as those atoms or molecules which carry charge

5 0
3 years ago
Read 2 more answers
The Hubble Space Telescope has an aperture of 2.4 m and focuses visible light (400-700 nm). The Arecibo radio telescope in Puert
stealth61 [152]

Answer:

y_{hubble} = 77\ \ m

y_{aceribo} = 1.1*10^6 \ \ m

Explanation:

what is the smallest crater that each of these telescopes could resolve on our moon?

For moon ;

s = 3.8 × 10 ⁸ m

y = 1.22 λs/D

where;

λ = 400 nm = 400× 10 ⁻⁹

D = 2.4 m

The smallest crater for the hubble space is calculated as follows:

y_{hubble} = 1.22*400*10^{-9}*3.8*10^8/2.4

y_{hubble} = 77\ \ m

For Aceribo ;

y = 1.22 λs/D

where :

λ = 75 cm = 0.75 m

D = 305 m

y_{acerbo} = 1.22*0.75 *3.8*10^8/305

y_{aceribo} = 1.1*10^6 \ \ m

5 0
3 years ago
Your friend tells you that a shiny element has to be a metal. Do you agreed? Explain your reasoning
Svetradugi [14.3K]

no i dont agree, because a glass bowl is shiny but its not a metal. just because some metals are shiny doesnt make all metals shiny

3 0
3 years ago
Read 2 more answers
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