When do cosmic rays penetrate your body?

Q: 8. It is the resistance of a liquid to flow. a. Volatility b. Capillary action CViscosity d.…

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Q: What is ultrasonography?

A: Ultrasonography: Ultrasonography is a diagnostic medical procedure that uses sound waves to produce…

Q: What is the Lorentz force?

A: Lorentz force

Q: What are cosmic rays primarily composed of?

A: Cosmic rays are energetic, subatomic particles that arrive from outside the Earth's atmosphere.

Q: Which of the following is the best description of the cosmic microwave background radiation?

A: ANS: D. ancient blackbody radiation from the extremely hot and dense conditions of the early…

Q: What happens to the wavelength of light emitted by a body as it tripled in temperature?

A: Suppose a body is emitting radiation of wavelength, & having temperature T.

Q: What causes cosmic microwave background energy?

A: The cosmic microwave background (CMB) is believed to be the leftover radiation from the Big Bang. As…

Q: An electron has a mass of 9.11 × 10−31 kg. A proton has a mass of 1.67 × 10−27 kg. What is the mass…

A: Electron's mass me = 9.11 × 10−31 kg Proton's mass mp=1.67 × 10−27 kg The ratio of proton mass to…

Q: The nearest star beyond the Sun is Alpha Centauri, 4.2 × 1016 m away. If we were to receive a radio…

A: Given:  Distance, d = 4.2 x 1016 m  speed of light,, c = 3 x 108 m/s

Q: A helium nucleus is positioned 4.00 Angstroms to the right of a carbon nucleus.  Where is the total…

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Q: This time you put a nucleus with 17 protons on the x-axis at x = 6.5 Angstroms. There will be a…

A: Here the total electric field is zero.

Q: Does consciousness collapse the wave function?

A: According to Rodger Penrose's Consciousness is linked to the Objective reduction process- " the…

Q: What is the wavelength at which the Cosmic Background Radiation has highest intensity (per unit…

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Q: Bir blok, yatay olara yatay bir yüzey üz sürtünme katsayısı C ne olmaludu?

A: The maximum force which will restrict the block from slipping must be less than that of the…

Q: Gamma rays are emanations that have: A) charge but no mass B) neither mass nor charge C) both mass…

A: We already know that A gamma beam or gamma radiation, is an infiltrating electromagnetic radiation…

Q: CERN can accelerate protons up to 99.9999991% of the speed of light. What is the γ factor for these…

A: Given that                   The speed of the protons is (v) = 99.9999991% of the velocity of the…

Q: What is transmutation?

A: When one chemical element is converted to another element or its isotope, this process is known as…

Q: What is a black body?

A: Why it is termed as the black body? The black body term arises because incident light will be…

Q: Repeatedly dropping a permanent magnet on the floor causes it to become demagnetized because of in…

A: When the permanent magnet is repeatedly dropping on the floor then there will be a generation of…

Q: A piece of iron is heated with a torch to a temperature of 858 K. How much more energy does it emit…

A: The Rate of energy radiated; P=AseT4 so, Energy α T4

Q: How does the electric force between a helium nucleus and a lithium nucleus placed a certain distance…

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Q: State Stefan-Boltzmann law. Give its value in SI units.

A: According to Stefan-Boltzmann law, the total heat energy emitted/radiated per unit time, per unit…

Q: What is the momentum of the alpha particle that is moving at 0.5c. with mass equal to 7.0*10-27 kg

A: Momentum of any particle is given by product of it's mass and speed. Momentum is generally…

Q: what does the D stand for?

A: In the given problem D is the diameter of the wheel.

Q: In Lorentz force analyzer experiment when circle radius increases and decrease with changing in…

A: The Lorentz force acting on a charged particle is given as  F→=qE→+qv→×B→ In absence of an Electric…

Q: What is Entropi?

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Q: If the energy released by the Hoover dam in 2.5 days is 2.7E14 J, find the equivalent mass…

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Q: Researchers have learned that astronauts don’t really care if livingquarters have clearly defined…

A: Answer : True. Demands of human factor psychologists are greater in space flights Each and every…

Q: Explain Stefan-Boltzmann law of radiation?

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Q: Is the statement by the philosopher Kierkegaard that “Life can only be understood backwards; bur it…

A: The statement given by the Kierkegaard that “life can only be understood backward, but it must be…

Q: Why is light is pure energy?

A: The light is only a packet of energy. The photon is known as the packet of energy and in general the…

Q: Sokv potented by diff.: Then flo X change in An e es acceleeped it's Merso 91.35% 97.0% 3 93.58%…

A: Actual mass of electron m'= 9.1 × 10^-31kg Accelartretd to 500kv

Q: You are a passenger on a spaceship. As the speed of the spaceship increases, you would observe

A: We are inside spaceship, which is moving as the speed of the spaceship increases, there is nothing…

Q: How Einstein felt in the aftermath of the bombings ?

A: solution as

Q: What are exotic particles?

A: Exotic particles are associated with weird properties. For different branches of physics, exotic…

Q: What year did John von Neumann receive his degree in physics?

A: Introduction : Jhon von Neumann was a physicist, Mathematician and Computer Scientist.He was known…

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.