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charle [14.2K]
2 years ago
11

How do you know that light travels faster than

Physics
1 answer:
Dahasolnce [82]2 years ago
8 0

Answer:

Explanation:

Answer

How about a thunder storm. I don't know if you live in a city or out in the sticks as I do. Lighting is very obvious and it is not a good idea to be out when experiencing a thunderstorm, especially in an open field. You might be the only thing around that will cause the lightning to be connected to the ground.#  Seconds later, you will hear the thunder which is quite harmless. If you live in the city, observing this is not quite so easy. There are all kinds of buildings around and some of them may block your view.

#The great golfer, Lee Travino, was "hit" by lightening storm twice while playing in tournaments.

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if you and your friend, ride bumper cars at the fair, what happens in terms of Newtons third law, when they collide?
belka [17]
Newton's third law says that for every action, there is an equal and opposite reaction. So if your friend's bumper car, both of you will go flying back at the same force in opposite directions.
Hope this helps.
3 0
3 years ago
Read 2 more answers
g suppose he used an alpha particle with an energy of 8.3 MeV, what would be the speed of this alpha particle
mixas84 [53]

Answer:

<em>speed of the alpha particle is 2 x 10^7 m/s.</em>

Explanation:

energy of alpha particle = 8.3 Mev

1 Mev = 1.602 x 10^-13 J

8.3 Mev = x

solving, x = 8.3 x 1.602 x 10^-13 = 1.329 x 10^-12 J

mass of a alpha particle = 6.645 x 10^−27 kg

The energy of the alpha particle is the kinetic energy KE of the alpha particle

KE = \frac{1}{2}mv^{2}

where m is the mass of the alpha particle

v is  the velocity of the alpha particle

substituting values, we have

1.329 x 10^-12 = \frac{1}{2}*6.645*10^{-27}*v^{2}

v^{2} = 4 x 10^14

v = \sqrt{4*10^{14} } = <em>2 x 10^7 m/s</em>

4 0
4 years ago
Which term best describes the change in frequency of waves when there is motion between the source of the waves and the observer
ahrayia [7]
The Doppler effect is the term that best describes the change in frequency of waves when there is motion between the source of the waves and the observer. The correct option among all the options that are given in the question is the first option or option "a". I hope the answer helps you.
4 0
3 years ago
Read 2 more answers
A race car's velocity increases from +28 m/s to +36 m/s over a 2.0-s time interval. What is the car's
BigorU [14]

Answer:

4 m/s^{2}

Explanation:

Acceleration, a=\frac {v-u}{t}

Where v and u are the final and initial velocities of the race car respectively, t is the time taken for the race car to attain velocity of 36 m/s.

Substituting 36 m/s for v, 28 m/s for u and 2 s for t then

a=\frac {36 m/s-28 m/s}{2}=4 m/s^{2}

3 0
3 years ago
An atom has an atomic number of 12 and a mass amber of 25. How many neutrons does the stom have? (1 point)
Alisiya [41]

Answer:

23423421342

Explanation:

342342342

7 0
3 years ago
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