27. Which of the following quantities has the smallest numerical values in SI units? A The charge on an electron. B The mass of an electron. C The mass of an alpha particle D The mass of a hydrogen atom.

Q: What is the energy in joules and eV of a photon in a radio wave from an AM station that has a…

A: Given, frequency of radio wave= 670–kHz we have to find the energy of the wave The energy of radio…

Q: Which of the following best describes the atom? I - Large-mass positive charges are found inside the…

A: Overview An atom contains nucleus having protons and neutrons. Protons have  large mass and positive…

Q: An atom consists of 8 protons, 9 newtons and 8 electrons. What is it's atomic number? Select one:…

A: Given Number of Protons (np) = 8  Number of neutrons (nn)= 9  Number of electrons (ne )= 8  Atomic…

Q: In gold leaf scattering experiments, few alpha particles bounce backward from a thin metal target.…

A: In gold leaf scattering experiment, a beam of alpha particle is directed to the thin sheet of foil.…

Q: The electrostatic force between a negative electron and a neuter neutron is: a. negative and…

A: Given :  An electron and a neutron Required : Electrostatic force between the electron and neutron.

Q: A carbon nucleus and an iron nucleus are initially located 5.60 nm apart from one another. How much…

A:

Q: 9. Depending how you organize the topics, there are at least 20 branches of Physics. Pick your…

A: Answer : The 20 branches of physics are-   Optics, classical mechanics,…

Q: A carbon nucleus and an iron nucleus are initially located 9.69 nm apart from one another. How much…

A: The work done is equal to the change in electric potential energy of the Carbon and Iron nucleus.

Q: How can you "charge" an object? Hint: This is a physics question. A. By adding or removing protons…

A: Required  method to charge a body

Q: A patient is exposed to 10 milli-Sieverts of alpha radiation, 20 milli-Sieverts of protons, and 30…

A: We know that, More the doseage causes more harmful. According to the given information, The doseage…

Q: What is the electrostatic field attraction between a hydrogen nucleus and its single electron, which…

A: Given  Orbital radius , R = 5.3×10-11 m  Charge of electron , q = 1.0×10-24 C  Electrostatic force…

Q: m=​QM​/ FZ m=mass of substance produced· Q=amount of charge· FZ=Faraday constant   What is the big M…

A: Given here in this question  m= mass of substance  Q= amount of charge Fz= Faraday Constant

Q: a. Calculate the electric force and gravitational force between the proton and the electron for a…

A:

Q: 36. * BIO Body cell X-ray a. A body cell of 1.0 × 10-5-m radius absorbs 4.2 × 10-14 J of X-ray…

A: Step 1:Radius of the body cell is 1×10−5mEnergy absorbed by the body cell is 4.2×10−14JEnergy…

Q: Experimentally, the most precise measurement of the proton radius comes from the PSI experiment: R =…

A: In a muonic atom an electron is replaced by a muon, which, like the electron, is a lepton. Since…

Q: Which particle is the force-carrying particle for the electromagnetic force?   a. Photon.   b.…

A: Correct option  a. Photon. Photon is the force carrying particle for the electromagnetic force. The…

Q: ed: 27. A particle in the nucleus of an atom; it has a positive electrical charge and is 2,000 times…

A: Required :: Fill in the blank.

Q: How does the energy of an electron relate with the distance from the nucleus? O a. The farther a…

A: The energy of an electron depends on its location with respect to the nucleus of an atom. The higher…

Q: +2e +79e Rutherford discovered the nucleus of atoms by firing a particles at gold foil. An a…

A:

Stellar evolution

We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.

Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.