Physics, 31.03.2020 01:04, Orlandon220
Even though each item on the distance ladder is only effective within a certain distance range,
the concept is still effective because
A) distances are ultimately relative, and not absolute.
B)each technique produces exact distances on its own.
C)each step can be calibrated through its overlap with the previous step.
D)the distance ladder concept can be verified by looking in different wavelength ranges,
E)the time delay due to light travel time is significant enough to limit the accuracy of distance measurements anyway.
Answers: 3
Physics, 22.06.2019 01:10, Katyazamo
The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping
Answers: 1
Physics, 22.06.2019 15:30, Mhayslett12
To understand the electric potential and electric field of a point charge in three dimensions consider a positive point charge q, located at the origin of three-dimensional space. throughout this problem, use k in place of 14? ? 0. part adue to symmetry, the electric field of a point charge at the origin must point from the origin. answer in one word. part bfind e(r), the magnitude of the electric field at distance r from the point charge q. express your answer in terms of r, k, and q. part cfind v(r), the electric potential at distance rfrom the point charge q. express your answer in terms of r, k, and q part dwhich of the following is the correct relationship between the magnitude of a radial electric field and its associated electric potential ? more than one answer may be correct for the particular case of a point charge at the origin, but you should choose the correct general relationship. a)e(r)=dv(r)drb)e(r)=v(r)rc)e(r)=? dv(r)drd)e(r)=? v(r)r
Answers: 2
Physics, 22.06.2019 19:30, beth999
Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?
Answers: 2
Even though each item on the distance ladder is only effective within a certain distance range,
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