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Jlenok [28]
3 years ago
11

The doppler effect states that the motion of any object can ________

Physics
1 answer:
pshichka [43]3 years ago
3 0

Answer:

shift the wavelength of spectral lines

Explanation:

The Doppler effect is commonly used in the field of astronomy to study the motion of astronomical objects such as a star, planets, and distant galaxies. This results in the changing of wavelength and shifting of the spectral lines, due to the relative and continuous motion of the receiver and the source. This is known as the red-shifting, where the lights in the spectrum move towards the highest wavelength, i.e towards the red light. This Doppler effect signifies that the distance between the distant galaxies and earth increases with the increasing recessional velocity.

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Answer:

Basketball

Explanation:

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Help I don’t understand this question
7nadin3 [17]
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A rock climber wears a 8.1 kg backpack while scaling a cliff. After 28.2 min, the climber is 9.4 m above the starting point. How
mart [117]

Answer:

Explanation:

mass of backpack, m = 8.1 kg

weight of climber, W = 656 N

height raised, h = 9.4 m

time, t = 28.2 min = 28.2 x 60 = 1692 second

weight of backpack, w = m x g = 8.1 x 9.8 = 79.38 N

Work done by the climber on the backpack = mg x h = 79.38 x 9.4 = 746.17 J

Wok done in lifting herself + backpack = (W + w) x h

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Power developed by the climber,P = Total work / time

P = 6912.57 / 1692 = 4.09 W

3 0
4 years ago
C) Explain the following.<br>Keftles, cooking pans and iron boxes have polished surfaces​
Monica [59]

Answer:

Polished surfaces reduce heat loss

5 0
3 years ago
A car moves from rest condition moves with acceleration 4 ms^-2.After 5s,calculate velocity of the car and the distance traveled
lisov135 [29]

Answer:

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Explanation:

with a constant acceleration of 4m/s/s, the vehicle will end up traveling at 20 m/s after 5 seconds, and will have travelled 60 meters.

5 0
4 years ago
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