The proton-proton chain releases energy because mass is cre- ated in the process. (T/F)
Q: How much mass would need to be converted to energy in one hour to provide the sun with 1.378x10^30…
A:
Q: A circular coil enclosing an area of 120 cm is made of 210 turns of copper wire (shown in the figure…
A: Solution:-Given thatArea of circular coil (A)=120 cm2=0.012 m2Number of turns (N)=210 turnsR=7…
Q: If a giant molecular cloud is 73 pc in diameter and a shock wave can sweep through it at 9 million…
A: Given: The diameter of the giant cloud is d = 73 Pc. The time taken by the shock wave to pass…
Q: What is advection dominated accretion flow in balck holes?
A: In a binary system of a black hole and a star, the black hole will start absorbing the mass from the…
Q: If a giant molecular floyd is 73 pc in diameter and a shock wave can sweep through it in 9 million…
A:
Q: Imagine sensors observe an X4 solar flare and fast-moving 'halo' CME. What sort of response would we…
A: When a strong X4 solar flare occurs along with a fast-moving Coronal Mass Ejection (CME), it can…
Q: The Swe solid epheres A o B have aeame emissirity. ovadius of À is four times the gradius of 8 @g…
A: Solution : Let RA & RB be the radii of sphere A & B respectively. TA & TB be their…
Q: Interstellar extinction dims starlight by about 1 magnitude per 1000 pc. What fraction of photons…
A: The apparent visual magnitude of star is changed by 1 magnitude, produces a flux ratio of fifth…
Q: Calculate the time required for a 1 solar mass blackhoe to completely radiate its energy.
A:
Q: Both the CNO cycle and the proton–proton chain combine 4 H nuclei to produce 1 He nucleus. Would…
A:
Q: How much energy does 1 nuclear reaction which converts 4 protons to a Helium nucleus generate?
A: Note: As per the guidelines, we can only answer first question of multiple question. Sorry for the…
Q: How is nuclear fusion different from the process of standard radio-active decay?
A: Radioactive decay: When the unstable heavy nucleus loses energy and form a stable nucleus. This…
Q: Nuclear fusion in the core of a massive star cannot create ele- ments much heavier than iron. (T/F)
A: Stars are powered by a nuclear process called fusion. In fusion, lighter elements will combine to…
Q: radio lines of neutral Hydrogen (apart from H91α) What does H91α meaning for?
A: Introduction: The Balmer series is the name given to a series of spectral emission lines of the…
Q: If the hottest star in the Carina Nebula has a surface temperature of 51,000 K, at what wavelength…
A: Concept: "The Wien's displacement law states that the wavelength carrying maximum energy is…
Q: If a star converted every bit of its mass into energy the conversion efficiency would be 100%.…
A:
Q: Given that the solar spectrum corresponds to a temperature of 5800 K and peaks at a wavelength of…
A: Given: The temperature of solar spectrum is 5800 K. The solar spectrum peaks at…
Q: Given that the solar spectrum corresponds to a temperature of 5800 K and peaks at a wavelength of…
A: A blackbody is an object that is capable of absorbing all the radiation that falls on it. Black-body…
Q: What cause the unstability of perovskite solar cells and How do scientsits deal with this problem?
A: Perovskite solar cells (PSCs) belongs to a new class of semiconductor devices that comprises the…
Q: (1) the solar luminosity has been constant since the Sun formed, and (2) the Sun was initially of…
A: If E is the rate of energy radiated by the sun and L is the luminosity of the Sun, then the time…
Q: (a) Using Einstein's famous equation for rest-mass energy, E = mc², undergoing nuclear energy that…
A:
Q: A typical hydrogen atom in interstellar space only undergoes a spin-flip once every 107 years. How…
A:
Q: Neutrinos have never been detected experimentally. (T/F)
A: Neutrinos are chargeless particles of very tiny mass which cannot be measured. Since they have very…
Q: rCK 15 tat nd s allowe oSc Mate on q rretionless Surace I CCla System anc Mer total e velocify a5s…
A: (a) The total energy of the system is,
Step by step
Solved in 3 steps
- At rest carbon emits a spectral line at 364.0 nm. If this line is observed at 410.0 nm from exoplanet host Helvetio's, how fast is Helvitios moving toward or away from us in km/s?A supernova’s energy is often compared to the total energy output of the Sun over its lifetime. Using the Sun’s current luminosity, calculate the total solar energy output, assuming a 1010 year main-sequence lifetime. Using Einstein’s formula E=mc2 calculate the equivalent amount of mass, expressed in Earth masses. [Hint: The total energy output of the Sun over its lifetime is given by its current luminosity times the number of seconds in a year times its ten billion-year lifetime; ; mass of earth = 6×1024kg; c = 3×108m/s. Your answer should be 200-300 Earth masses.]How long will a 7 solar mass balck hole live?
- Assume that the solar wind causes the Sun to lose mass at a rate of 2 x 10’ kg/s. If you assume the wind is emitted a constant rate, estimate the time (in units of Gyr =Gigayears = 10° years) that it will take the entire Sun to evaporate via its solar wind emission. (Of course, the rate won't be constant throughout the lifetime of the Sun---this is just a rough estimate to understand the timescale associated with this process.) [Hint: you need to look up a number and do several unit conversions; this is a *rate* problem. Enter your answer as an integer or decimal, NOT in scientific notation.]Calculate the time required for a 2 solar mass blackhoe to completely radiate its energy.The total energy stored in a radio lobe is about 1053 J. How many solar masses would have to be converted to energy to produce this energy? (Hint: Use E = mc2. Note: One solar mass equals 2.0 1030 kg.)
- Why are observers more likey to see aurorae in Canada than in Florida ?If a giant molecular cloud has a diameter of 56 pc and drifts relative to nearby objects at 19 km/s, how long (in yr) does it take to travel a distance equal to its own diameter?The density and temperature in the solar corona are much higher than in the photosphere. (T/F)