Answer:
Dahil to sa pilipinas para Hindi I to masakof ng chinaPara lingtas ang mga tao sa pilipinas at is a pa Wang mag kalat sa ebang ebang dumiy
Explanation:
bakit lahat tayo ay ekonomista
Answer:
ω = 5.5 rad/s
Explanation:
- Assuming no external torques present during the instant that the clump of clay is dropped on the turntable, total angular momentum must be conserved.
- The angular momentum of a rotating rigid body, can be expressed as follows:
where I = moment of inertia regarding the axis of rotation, and ω =
angular speed of the rotating body.
- Since the angular momentum must keep constant, this means that it must be satisfied the following equality:
where L₀ = I₀ * ω₀, Lf = If * ωf.
I₀ is the moment of inertia of a solid disk rotating around an axis
passing through its center, as follows:
If, is the moment of inertia after dropping the clump of clay, which adds
its own moment of inertia as a point mass, as follows:
- Replacing I₀, If and ω₀ in (2), we can solve for ωf, as follows:
no, work is = force * distance or displacement
When a source of light moves away from you, you see the characteristic lines in its spectrum move toward slightly longer wavelengths. Lines in the visible part of the spectrum move toward the red end.
When a source of light moves toward you, you see the characteristic lines in its spectrum move to slightly shorter wavelengths. Lines in the visible part of the spectrum move toward the violet end.
We see these 'shifts' when we look at the spectra of stars. "Red shift" is the change in the spectrum of a star when it's moving away from us, and "Blue shift" is the change when it's moving toward us. These measurements are the only way we have of measuring the radial motion of stars, and their speeds toward or away from us.
The whole subject of why a spectrum shifts toward longer or shorter wavelengths was explained by the Austrian physicist Christian Doppler in 1842, and it's known as the "Doppler Shift" in honor of him and his work.
