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V125BC [204]
3 years ago
7

The presence of which phenomenon proved the predictability of the big bang theory

Physics
2 answers:
alekssr [168]3 years ago
5 0
The measurement of the expansion of the universe was what gave rise to the big bang theory and it's predictions.
denis-greek [22]3 years ago
3 0

Answer: C M B (Cosmic Microwave Background)

Explanation:

The theory of Big Bang suggests that matter of entire universe was converged at a single point thus, having infinite density. At time t = 0 (Big Bang), the universe started expanding.

This is no more a hypothesis but a theory because of the evidence provided by detection of C M B i.e. Cosmic microwave background. C M B is the remnant radiation of the Big Bang left over from about 400,000 years after the Big Bang. Before that the universe was opaque. C M B is present in all the directions and has an average temperature of 3 K. Thus, the detection of C M B led to proof of the Big Bang Theory.

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If the period of the pendulum is tripled, what is the length of the string increased by?
Nitella [24]
The period of the pendulum doesn't determine the length of the string. 
It's the other way around.

The period of the pendulum is proportional to the square root of its length.
So if you want to triple the period, you have to make the string nine times
as long as it is now.
7 0
3 years ago
How did people studying lunar eclipses learn that Earth is round?
qwelly [4]

Answer:

Scientists have studied eclipses since ancient times. Aristotle observed that the Earth's shadow has a circular shape as it moves across the moon. He posited that this must mean the Earth was round. Another Greek astronomer named Aristarchus used a lunar eclipse to estimate the distance of the Moon and Sun from Earth

4 0
2 years ago
Read 2 more answers
Hai vận động viên chạy trên cùng 1 đoạn đường, vận động
Vladimir [108]

Answer:

Pemain A

Explanation:

Mengingat data berikut;

Kecepatan pemain A = 12 m/s

Kecepatan pemain B = 36 km/h

Untuk menentukan siapa pelari tercepat di antara dua pemain;

Pertama-tama, kita harus mengubah kecepatan menjadi satuan standar pengukuran yang sama.

Jadi, mari kita gunakan pengukuran umum meter per detik.

Konversi:

36 km/h = (36 * 1000)/(60 * 60)

36 km/h = 36000/3600

36 km/h = 10 m/s

Kecepatan pemain B = 10 m/s

Oleh karena itu, dibandingkan dengan kecepatan pemain A; pemain A lebih cepat.

6 0
3 years ago
Section 1 - Question 30
stira [4]
Answer : A
Explanation: he is motivated to make the football team
3 0
3 years ago
A proton is projected perpendicularly into a magnetic field that has a magnitude of 0.50 T. The field is then adjusted so that a
bixtya [17]

Answer:

B_e = 2.72 \times 10^{-4} T

Explanation:

As we know that when charge particle is projected in perpendicular magnetic field then the radius of the charge particle is given as

F = qvB

\frac{mv^2}{r} = qvB

now we have

r = \frac{mv}{qB}

since here radius of proton and electron will be same

so we will have

r_e = r_p

\frac{m_e v}{q_e B_e} = \frac{m_p v}{q_p B_p}

so we have

B_e = \frac{B_p m_e}{m_p}

given that

B_p = 0.50 T

m_e = 9.11 \times 10^{-31} kg

m_p = 1.67 \times 10^{-27} kg

so we have

B_e = \frac{0.50(9.11\times 10^{-31})}{1.67\times 10^{-27}}

B_e = 2.72 \times 10^{-4} T

4 0
3 years ago
Read 2 more answers
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