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stellarik [79]
3 years ago
9

Which electromagnetic wave enables us to see objects?

Physics
2 answers:
disa [49]3 years ago
4 0
Visible light
Choose B
ASHA 777 [7]3 years ago
3 0

Answer: The correct answer is "visible rays".

Explanation:

Electromagnetic wave: In electromagnetic wave, both the electric fields and the magnetic field are directed in the direction of the propagation of the electromagnetic wave. Electromagnetic wave travels in vacuum.

It travels with the speed of the light.

For example, X-rays, gamma rays, infrared rays and visible region.

The electromagnetic spectrum consists of visible region and an invisible region.

Visible region of the electromagnetic can be seen by naked eyes. Its range is 400 nm to 700 nm.

We are unable to see infrared rays, ultraviolet light and gamma rays.

Therefore, the correct option is (b).

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The smallest known galaxy, Segue 2, has an approximate radius of 1.05 × 1015 kilometers. Use the conversion factors 1 light-year
scoundrel [369]

( 1.05 x 10¹⁵ km ) x ( 1 LY / 9.5 x 10¹² km ) x ( 1 psc / 3.262 LY ) =

(1.05) / (9.5 x 3.262) x (km · LY · psc) / (km · LY) x (10¹⁵⁻¹²) =

(0.03388) x (psc) x (10³) =

33.88 parsecs


5 0
3 years ago
Olivia places her pet frog on a line to observe the frog’s motion. The line is divided into sections that measure 1 centimeter e
aalyn [17]

Answer:

Explanation:

Let the forward displacement is taken is positive, and the backward displacement is taken is negative.

first displacement = + 18 cm

second displacement = - 6 cm

third displacement = - 12 cm

net displacement = 18 - 12 - 6 = 0 cm  

4 0
3 years ago
Read 2 more answers
A very small object carrying -7 μC of charge is attracted to a large, well-anchored, positively charged object. How much kinetic
miss Akunina [59]

Answer:

ΔK.E = 14 nJ

Explanation:

Solution:

- The charge that moves under the influence of an Electric Field produced between a potential difference (V) stores electric potential energy U within that is converted to kinetic energy.

- We will use conservation of energy on the system that contains the charged particle with charge q loses its electric potential energy U as it moves towards positively charged object that converts into a gain in Kinetic energy of the charged particle ΔK.E:

                                 ΔK.E = U

Where,

                                 U = V*q

                                 ΔK.E = V*q

                                 ΔK.E = (7*10^-6)*(2*10^-3)

                                 ΔK.E = 14 nJ

- The gain in kinetic energy is 14 nJ.

7 0
3 years ago
Which would most likely have a direct effect on using wave power to generate electricity?
Nadya [2.5K]

Answer: I would either say wind or sunlight

Explanation:

I don’t think it would be clouds or rain

Hope that helps

4 0
2 years ago
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When ice melts, is thermal energy released or absorbed? What is an example of a chemical change in which thermal enersy is reale
inessss [21]

Answer:

energy is absorbed during the process of the ice melting.

7 0
3 years ago
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