A star has a life expectancy of 5 billion years. What would be its mass?
Q: A radio transmitter broadcasts at a frequency of 155kHz. What is the wavelength of the wave? ( speed…
A:
Q: A star is observed with a surface temperature of 3,000 K and a luminosity of 100,000 solar…
A: Given , Temperature = 3000 K Solar Luminosity = 100,000 Now , mass and luminosity are related by…
Q: A newly discovered bright star has a luminosity of 78.4×1026 W. What is its temperature if it has a…
A:
Q: A radio transmitter broadcasts at a frequency of 172kHz. What is the wavelength of the wave? ( speed…
A:
Q: If the speed of light is given as 299,792,458 meters per second and the wavelength is 375 nm. what…
A:
Q: 6.2 The half-life of helium-6 is 806.7 ms. If helium-6 is placed in a particle accelerator and is…
A: Given:To = 806.7 ms = 806.7 x 10-3 sv = 99.855% of c = (0.99855)c Half life measured:We know that…
Q: The H-alpha line from a star is observed to be 725 nm. Estimate its redshift.
A: As per De Broglie's hypothesis light can behave both as a wave and particle. Thus light waves can…
Q: The mass of the Sun is 2.0x10^30 kg The thermal energy of the Sun is approximately 2x10^41 joules…
A:
Q: How long would it take a space craft that was traveling at a speed of 61,079 km/hr to travel a…
A:
Q: If the Sun's mass is about average, how many stars are there in the Milky Way galaxy? The mass of…
A:
Q: How much energy is produced when the sun converts 6 kg of mass into energy?
A: Given Data: The mass is, m=6 kg The expression for the mass-energy equivalence or the theory of…
Q: A radio transmitter broadcasts at a frequency of 119kHz. What is the wavelength of the wave? ( speed…
A: Given, The frequency of the broadcast signal is, f = 119 kHz = 119×103 Hz speed of the light in the…
Q: Find the approximate mass of the dark and luminous matter in the Milky Way galaxy. Assume the…
A:
Q: If a space ship traveling at 1/5 the speed of light travels to a star system 6 light years away How…
A: Speed of spacecraft is ; here is speed of light.Distance is Note:Speed of light is Find:Time taken…
Q: A newly discovered bright star has a luminosity of 78.4×1026 W. What is its temperature if it has a…
A:
Q: A radio transmitter broadcasts at a frequency of 143kHz. What is the wavelength of the wave? ( speed…
A:
Q: A star is 80 light years from Earth. How fast does a spacecraft have to be for the journey to last…
A: The objective of the question is to find out the speed of a spacecraft that would allow an astronaut…
Q: Find the wavelength of peak intensity for a hot 45000 K star that emits thermal radiation.
A: Given information:Temperature of the object (T) = 45000 K
Q: radio transmitter broadcasts at a frequency of 139kHz. What is the wavelength of the wave? ( speed…
A: Frequency = 139 kHz = 139000 Hz Speed of light = 3 × 108 m/s
Q: The temperature of the universe is 2.76 K. What is the wavelength of the cosmic background…
A:
Q: What is the distance in light years (ly) to Alkaid? 12 ly 104 ly 55 ly 4 ly
A:
Q: Calculate the length of one light-year (ca), in metres.
A:
Q: If a star has a surface temperature of 20,000 K (2.00 × 104 K), at what wavelength will it radiate…
A: For calculating the wavelength emitted by a hot body consider it as a blackbody. A blackbody is an…
Q: Calculate the number of miles in a light-year, using 1.86 105 mi/s as the speed of light. (Hint:…
A: Given data: The speed of light c = 1.86 × 105 miles/s No. of days in a year = 365 days
Q: A star has a surface area of 6.92*1018 m2 . How much power does it radiate if it has a surface…
A:
Q: The main-sequence age of a star of 1M⊙ is about 1010 years. What is the main-sequence age of a star…
A: Answer the following question is
Q: A star collapses onto a neutron star. If its original radius is 7x105 km, by what factor will its…
A:
Q: Doppler redshift in light from a star indicates that the star is_____.
A: When there is relative motion between observer and source then there is change in frequency ( or…
Q: A main sequence star of mass 25 M⊙has a luminosity of approximately 80,000 L⊙. a. At what rate DOES…
A: Given information: The mass of the star (m) = 25M⊙ The luminosity of the star (L) = 80000L⊙ part a):…
Q: A radio transmitter broadcasts at a frequency of 142kHz. What is the wavelength of the wave?
A:
Step by step
Solved in 3 steps
- Find the approximate mass of the luminous matter in the Milky Way galaxy, given it has approximately 1011 stars of average mass 1.5 times that of our Sun.What is the luminosity of a star having four times the radius of the Sun and a surface temperature of 8,000 K?A blackbody measures 20 cm by 15 cm. If the temperature of the object is 2,500 K, how much energy does it emit per second?
- If the Sun's mass is about average, how many stars are there in the Milky Way galaxy? The mass of the Sun is of the order of 1030 kg and the mass of the Milky Way galaxy is of the order of 1042 kg.Do you think I can type a 4000-word research paper trying to answer, " What percentage of the mass of a star is converted to electromagnetic energy?" If not how can improve this question to reach 4000 words? If so how should I approach this question?What is the mass of a star with a main-sequence lifetime of 6 billion years?
- A radio transmitter broadcasts at a frequency of 127kHz. What is the wavelength of the wave? ( speed of light in vac-uum: c = 3 × 10 8 m/s ) Calculate to 1 decimalA star has a radius of 2RO and has a temperature of 3TO. Calculate the luminosity in solar units.How much energy is produced when the sun converts 1 kg of mass into energy?