The illustration shows a light ray striking an object.
2 answers:
You might be interested in
2.3275862×10¹²km/s fast is sirius moving in km/s.
<h3>Briefing:</h3>Hydrogen has a spectral line at = 116nm=116×10⁻⁹m
Line is observed at = 107 nm=107×10⁻⁹m
Now, from the Hubble's law
V=×C
Where,
v is the velocity
Δλ = Change in wavelength = 116 - 107= 9nm=9×10⁻⁹m
λ = Actual wavelength=116nm=116×10⁻⁹m
C is the speed of the light=3×10⁸m/s
on substituting the respective values, we get
V=(9/116)×3×10⁸=23275862.069×10⁵m/s
V=2.3275862×10¹²km/s.
<h3>What is the wavelength?</h3>A waveform signal's wavelength, which is the distance between two identical locations (adjacent crests) in the succeeding cycles, determines whether it is sent through space or via a wire. Typically, in wireless systems, this length is specified in meters (m), centimeters (cm), or millimeters (mm).
To know more about Wavelength visit:
#SPJ4
Answer:
(a). The tension in the cable is 658.33 N.
(b). The horizontal components of the force exerted on the beam at the wall is 526.66 N.
(c). The vertical components of the force exerted on the beam at the wall is 95.002 N.
Explanation:
Given that,
Weight of beam= 190 N
Here, The center of gravity is at its center
According to figure,
The angle is
The horizontal component is
The vertical component is
(a). We need to calculate the tension in the cable
Using formula of net torque acting on the pivot
Put the value into the formula
(b). We need to calculate the horizontal components of the force exerted on the beam at the wall
Using formula of horizontal component
Put the value into the formula
(c). We need to calculate the vertical components of the force exerted on the beam at the wall
Using formula of vertical component
Put the value into the formula
Hence, (a). The tension in the cable is 658.33 N.
(b). The horizontal components of the force exerted on the beam at the wall is 526.66 N.
(c). The vertical components of the force exerted on the beam at the wall is 95.002 N.
