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Veronika [31]
4 years ago
13

Please explain as if I am a 6 year old; why is time travel theoretically impossible?

Physics
2 answers:
Vsevolod [243]4 years ago
6 0
Time travel would create paradoxes and history could be altered, resulting in something called the "butterfly effect". This means that even the smallest of changes can result in a HUGE difference. If you traveled back in time, you would interact with people and things. This would alter history, creating massive ripples in time. The movie "Back to the Future" and the new Harry Potter book have great examples of this. Hope I answered your question!
wolverine [178]4 years ago
4 0
Why exactly do you mean
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3 years ago
Drag the tiles to the correct boxes to complete the pairs.
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Answer:

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Explanation:

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2 years ago
What is the distance of separation between objects of masses 5.6 x 10 5 kg and 8.8 x 10 6 kg if the force of gravity between the
AlladinOne [14]

Answer:

2.87m

Explanation:

Using the law of gravitation to solve this question

F = GMm/r²

G is the gravitational constant

M and m are the masses

r is the distance between the masses

Substitute the given values

G = 6.67×10^-11 m³/kgs²

M =8.8 x 10^6 kg

m = 5.6 x 10^5 kg

F =440N

400 = 6.67×10^-11×8.8 x 10^6 ×5.6 x 10^5/r²

400r² = 328.698×10

400r² = 3286.98

r² = 3286.98/400

r² = 8.21745

r = √8.21745

r = 2.87m

Hence the distance of separation is 2.87m

7 0
3 years ago
A wave traveling in water has a frequency of 250 Hz and a wavelength of 6.0m. What is the speed of the wave?
vladimir2022 [97]
Since you are looking for the speed, you need to rearrange the formula which is f = speed / wavelength. That should give you speed = f (wavelength.) All you need to do next is to substitute the value to the following equation.  speed = 250 Hz (6.0m) that should leave you with 1500 m/s which is very fast.
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4 years ago
Activity that uses 150 calories of energy per day, or 1,000 calories per week, describes ___________.
serious [3.7K]
Moderate physical activity
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