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sergij07 [2.7K]
2 years ago
14

কে প্রথম Anti particle এর অস্তিত্ব ঘোষণা করেন?

Physics
2 answers:
const2013 [10]2 years ago
8 0

Answer:

Is this a joke? Because if ur on brainly for english users you should change that

Explanation:

vaieri [72.5K]2 years ago
7 0

Answer:

Who first announced the existence of Anti particle?

কে প্রথম Anti particle এর অস্তিত্ব ঘোষণা করেন?

Explanation:

Anderson briefly announced in Science [1] his discovery of “easily deflectable positives,” following up with a full paper in the Physical Review that carefully analyzed the balance between the particles' mass and speed and their energy loss along the tracks.

অ্যান্ডারসন বিজ্ঞানে সংক্ষিপ্তভাবে ঘোষণা করেছিলেন [1] শারীরিক পর্যালোচনায় একটি সম্পূর্ণ কাগজ যা "কণাগুলির ভর এবং গতি এবং ট্র্যাকগুলির সাথে তাদের শক্তি হ্রাসের মধ্যে ভারসাম্যটি সতর্কতার সাথে বিশ্লেষণ করেছিল তার একটি সম্পূর্ণ কাগজ সহ।

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3 years ago
In the equation for centripetal force, which expression represents the centripetal acceleration of the object? mv2 StartFraction
Sphinxa [80]

Answer: \frac{V^{2}}{r}

Explanation:

According to Newton's 2nd Law of motion the force F is proportional to the mass Fm and acceleration a:

F=m.a (1)

On the other hand, the equation for the Centripetal force is:

F=\frac{mV^{2}}{r} (2)

Where:

V is the velocity

r is the radius of the circular motion

Making (1) and (2) equal:

m.a=\frac{mV^{2}}{r} (3)

Hence:

a=\frac{V^{2}}{r} This is the expression for the centripetal acceleration

It should be noted, this acceleration is directed toward the center of the circumference of the circular motion (that's why it's called centripetal acceleration).

3 0
3 years ago
Read 2 more answers
What evidence did wegener have to support his theory of plate tectonics?
PSYCHO15rus [73]

Answer:

Wegener first thought of this idea by noticing that the different large landmasses of the Earth almost fit together like a jigsaw puzzle. The continental shelf of the Americas fits closely to Africa and Europe, and other continents showed the same trend. Wegner also analyzed both sides of the Atlantic Ocean for rock type, geological structures and fossils and noticed that there was a significant similarity between matching sides of the continents, especially in fossil plants.

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2 years ago
A particle executes simple harmonic motion with an amplitude of 2.18 cm.
Bogdan [553]

Answer:

The positive displacement from the midpoint of its motion at the speed equal one half of its maximum speed is 3.56 cm.

Explanation:

Maximum speed is  :

                          v (max) = Aω

Speed v at any displacement y is given by  

v^{2} = w^{2} (A^{2} - y^{2})   ........................................................  i

And,

               v = \frac{1}{2} v (max)  

          or,  2 × v = Aω     ....................................................   ii

Eliminating  ω from equations i and ii,

                       \frac{1}{4} A^{2}  w^{2}  =  w^{2}  ( A^{2}  - y^{2})

                     or, y^{2} =  (\frac{3}{4}) A^{2}  =(\frac{3}{4}) 2.18^{2}

                    or,  y =  3.56 cm.

3 0
2 years ago
The arrows in the chart below represent phase transitions.
Vikentia [17]

Answer:

1, 2, and 3.

Explanation:

Hello.

In this process, since the phase transitions that require energy are those that pass from a state with less energy or more molecular order to a state with more energy or less molecular order, say, from solid to liquid (melting), from liquid to gas (boiling) and from solid to gas (sublimation), we can conclude that the arrows representing heat energy gained are 1, 2, and 3 since 1 represents boiling, 2 melting and 3 sublimation.

Best regards.

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2 years ago
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