How much time is a parsec? It is defined as 360×60×60/2π astronomical units (AU), which is equivalent to about 19.17 trillion miles, or about 3.262 light-years. The Star Wars parsec appears to be equivalent to the real-world measurement: The Essential Atlas says a parsec is 3.26 light-years. How many parsecs are in the universe? The […]
What is effect of intensity of light?
What is effect of intensity of light? Intensity cannot change the cut off frequency or stopping potential. High intensity means more number of photons, so chances of hitting to electron by them increase and hence more photo electron are emitted i.e., photo current increases. Why intensity decreases as distance from the light source increases this […]
What is the difference between solar time and solar day?
What is the difference between solar time and solar day? The sidereal day is measured with respect to the stars, while the solar day is the length of time measured from noon to noon. By noon, we mean the time when the Sun passes the celestial meridian, reaching its maximum height in the sky. How […]
What are some examples of primary and secondary sources?
What are some examples of primary and secondary sources? Primary and secondary source examples Primary source Secondary source Letters and diaries written by a historical figure Biography of the historical figure Essay by a philosopher Textbook summarizing the philosopher’s ideas Photographs of a historical event Documentary about the historical event What are examples of sources? […]
Can electrons exist alone?
Can electrons exist alone? Electrons have mass, charge, angular momentum, an intrinsic magnetic moment and helicity, but they have no known substructure. No two electrons can occupy the same space at the same time. They are part of every atom but they can exist separately on their own as well. What happens to the atoms […]
What is the relationship between temperature and kinetic energy answers?
What is the relationship between temperature and kinetic energy answers? Kinetic energy is directly proportional to the temperature applied. Basically with increase in temperature the vibration / collision of molecules increase hence kinetic energy increases. What is the relationship between the kinetic energy of molecules in an object? Explanation: The kinetic energy of the molecules […]
Is gravity the same in a plane?
Is gravity the same in a plane? You are correct that the force of gravity is slightly less the further you get from the earth. Airlines typically cruise around 30,000 – 35,000 feet. The force of gravity on Everest is about 0.434% less than the standard 9.8N/kg. This means that one pound at Sea Level […]
How long does it take light to travel from the sun to Pluto?
How do you calculate heat of combustion?
How do you calculate heat of combustion? The heat of combustion is calculated by multiplying the mass of the water times the specific heat of the water times the change in temperature. This entire equation is multiplied by -1, because heat of combustion is negative because heat is being lost or released. What is combustion […]
Is damped oscillation?
Is damped oscillation? An oscillator is anything that has a rhythmic periodic response. A damped oscillation means an oscillation that fades away with time. Examples include a swinging pendulum, a weight on a spring, and also a resistor – inductor – capacitor (RLC) circuit. What causes damped oscillation? a decrease in intensity of oscillations with […]