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sergij07 [2.7K]

3 years ago

14

কে প্রথম Anti particle এর অস্তিত্ব ঘোষণা করেন?

2 answers:

const2013 [10]3 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]3 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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A vibrating object produces periodic waves with a wavelength of 53 cm and a frequency of 15 Hz. How fast do these waves move awa

DerKrebs [107]

Answer:

v = 7.95 m/s

Explanation:

Given that,

Wavelength of a wave, $\lambda=53\ cm=0.53\ m$

Frequency of a wave, f = 15 Hz

We need to find the speed of the wave. The speed of a wave is given by :

$v=f\lambda\\\\v=15\ Hz\times 0.53\ m\\\\v=7.95\ m/s$

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2 years ago

If a 2 kg ball has 120 J of PE, then how high off the ground is it?

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3 years ago

A railroad train is traveling at a speed of 26.0 m/s in still air. The frequency of the note emitted by the locomotive whistle i

olga55 [171]

Answer: 0.757m; 0.881m; 432.70Hz; 371.89Hz

Explanation:

Give the following :

Velocity of train (Vt) = 26m/s

Frequency of sound (Fs) = 420Hz

Speed of sound (Vs) = 344m/s

1) wavelength = (Vs - Vt) / Fs

Wavelength = (344 - 26) / 420 = 318/420 = 0.757m

11) Wavelength = (Vs + Vt) / Fs

Wavelength = (344 + 26) / 420 = 370/420 = 0.881m

111) According to the doppler effect :

Fl = [(V + Vl) / (V + Vs)] * fs

Fl = frequency of listener ; fs = frequency of sound source ; V = speed of sound ; Vl = Velocity of listener ; Vs = speed of sound source

Vs = - ve (train moving towards listener)

Fl = [(V + Vl) / (V + Vs)] * fs

Fl = [(344 + 0) / (344 - 26)] * 400

Fl = (344 / 318) * 400 = 432.70Hz

1V) Vs = + ve (train moving away listener)

Fl = [(V + Vl) / (V + Vs)] * fs

Fl = [(344 + 0) / (344 + 26)] * 400

Fl = (344 / 370) * 400 = 371.89Hz

6 0

3 years ago