Answer:
Explanation:This question is simply asking you to describe the following equations:
E = hv
v = c/L
E = hc/L
where E is the energy, h is Planck's constant, v is the frequency, c is the speed of light and L is the wavelength.
By looking at the equations you should be able to tell what the relationships between energy, frequency and wavelength are. If you are having difficulty describing them, then create a table with actual values and see what happens to the energy as you increase or decrease the frequency and/or wavelength.
That depends on a number of things that we don't know because you haven't told us.
If any of the things on this list changes, then the answer to the question changes:
-- What is "it" ?
-- Was it dropped, thrown, fired, or launched ?
-- From what height above the ground ?
-- With what speed ?
-- In what direction ?
-- What is the acceleration of gravity where this took place ?
-- Did any drag act on it, due to liquid or gas, before it hit the ground ?
Answer:
0.05 rad/s
Explanation:
7.8 km = 7800 m
For the residents inside the space cylinder to experience the same gravitation acceleration g = 9.81m/s2 on Earth, the centripetal acceleration must be the same as g
But centripetal acceleration is product of angular velocity squared and radius of rotation r
Storing music digitally requires less storage room than analog records or tapes. Digital music is easier to copy and the copies are the same as the original. The quality of the signal does not degrade over long periods of time.
