Why would protons and neutrons hold together in the first second following the Big Bang?

solniwko [45]

Answer:

4) Isaac Newton was the first scientist to propose the idea that gravity increases distance between objects decrease

Explanation:

1 - Kepler may have inspired most of Newton's propositions, but there is no record of collaborating on the theory of universal gravitation.

2 - The universal gravitation theory resemble the works of other great scientists, but Newton was indeed the first to propose this idea of gravitation

3 - On the contrary, these scientists have shared concepts, with differences in accuracy that supersede each other to be accepted by the community (i.e: Einstein being at the forefront despite sharing some ideas with Newton)

8 0

3 years ago

Photons of infrared radiation with wavelengths longer than those of visible light will have what kind of energy compared to that

densk [106]

Answer:

Infrared photons carry lower radiation energy than the visible light.

Explanation:

Each photon carries an energy that is directly proportional to its frequency, being this proportionality constant the Planck's constant h.
So, we can write the energy of a single photon as follows:

$E = h*\nu (1)$

Since there exists an inverse relationship between wavelength and frequency, and infrared radiation has longer wavelengths, this means that its frequency is lower than the one of the visible light.
So, an infrared photon carries less energy that one of the visible light.

6 0

3 years ago

dos contenedores de objetos tienen 30 y 40 kg de masa respectivamente y están sobre una superficie horizontal sin rozamiento una

Dmitry_Shevchenko [17]

Answer:

The acceleration of each mass is the same, and approximately equal to $1.43\,\,\frac{m}{s^2}$

Explanation:

Notice that the mass of the whole system is: 30 kg + 40 kg = 70 kg

If we use a net force of 100 N on the combined system, we can find the acceleration imparted to the masses via Newton's second law:

$F_{net}= M\,*\,a\\100\,\,N = 70\,\,kg * a\\a = \frac{100}{70} \,\frac{m}{s^2} \\a\approx 1.43\,\frac{m}{s^2}$

4 0

3 years ago

Net force is also a vector quantity which has both magnitude and direction. Using complete sentences, describe the net force act

loris [4]

Answer:

In this movement, both the magnitude and the direction of the force change

Explanation:

A body that moves in an elliptical path must be subjected to a force that is pointed towards one of the foci, therefore the force is central.

The magnitude of this force must be greater when the two bodies are closer and its directional changes, but it always points to the focus where the body that originates the force is.

In this movement, both the magnitude and the direction of the force change

7 0

3 years ago

WILL GIVE BRAINLEST!!

polet [3.4K]

I think the answer is c

7 0

4 years ago

Why would protons and neutrons hold together in the first second following the Big Bang?​

Why would protons and neutrons hold together in the first second following the Big Bang?