A nuclear explosion on Earth generates an electromagnetic pulse that travels away from the Earth. A long distance from Earth, scientists on an alien planet named Tutheleftaya, a distance LL from the Earth, detect the pulse. Since the pulse travels at the speed of light, they detect it at time t=L/ct=L/c after the pulse was created on Earth. Another group of scientists on another alien planet, named Offtatheright, which is also a distance LL away from the Earth, but in the opposite direction, also detect the pulse. Since they are the same distance from the Earth, they detect it at the same time as the scientists on Tutheleftaya. In the reference frame of someone traveling on a spaceship going from the Earth to Tutheleftaya, and about halfway there when the explosion happens, which group of scientists detects the pulse first?

for i will definitly keep him in my prayers. may god bles you and your

plz mark me as brainliest

have an amazing day

it doesn't. it was imagined up in the middle ages.

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27

scattering of light by tiny particles in air to produce the colors we see on sky, is dependent on the following factors:

(i) wavelength of light

(ii) size of the scattering particle  

(iii) distance traveled by light through the atmosphere.

according to rayleigh's law of scattering, the amount of scattering is inversely proportional to the fourth power of its wavelength. shorter the wavelength, greater is its scattering. hence violet/blue light is scattered more than red.

sun's light is a composite light ( visible light) with wavelengths in the range 400 nm (violet) to 700 nm (red). as sunlight passes through our atmosphere, the molecules of air scatter light according to their wavelengths. during sunrise and sunset, the sun's position is below the horizon. hence light from the sun travels a greater distance in the atmosphere when compared to its position a noon.

as sunlight enters the earth's atmosphere, blue light is scattered away and at the end of its journey in the sky, only red and orange wavelengths remain in the beam.

hence at sunrise and sunset, the sky appears reddish orange.