Answer:
![f=1.13s^{-1}=1.13Hz](https://tex.z-dn.net/?f=f%3D1.13s%5E%7B-1%7D%3D1.13Hz)
Explanation:
Hello,
In this case, a frequency stands for a rate in which some action is done per unit of time. In this case, for the heartbeat, since 68 actions (heartbeats) occur in 1.0, the frequency turns out:
![f=\frac{68}{1.0min}=68min^{-1}](https://tex.z-dn.net/?f=f%3D%5Cfrac%7B68%7D%7B1.0min%7D%3D68min%5E%7B-1%7D)
Or as most commonly used in Hz (
):
![f=68\frac{1}{min} *\frac{1min}{60s}=1.13s^{-1}=1.13Hz](https://tex.z-dn.net/?f=f%3D68%5Cfrac%7B1%7D%7Bmin%7D%20%2A%5Cfrac%7B1min%7D%7B60s%7D%3D1.13s%5E%7B-1%7D%3D1.13Hz)
Best regards.
The period of the Sun's galactic motion: 2.26=
years. The galaxy's rotation around its core, which all of its parts share to varied degrees.
<h3>
What is galactic motion?</h3>
- The galaxy's rotation around its core, which all of its parts share to varied degrees. Most of the time, the motion of the galactic disc is circular and parallel to the galactic plane. Moving through the immensity of intergalactic space is the Milky Way itself.
- Our galaxy is a member of the Local Group, a collection of nearby galaxies, and as a group, we are lazily moving toward the cluster's nucleus at a speed of 25 miles per second. The galactic disk's gravity causes the Sun to oscillate every 64 million years, which is a much more accurate picture of the Sun's orbit around the Milky Way galaxy (though it is exaggerated vertically for clarity).
a)T=![2\pi *r/v](https://tex.z-dn.net/?f=2%5Cpi%20%2Ar%2Fv)
![=2*\pi *30000*9.46*10^15/250000](https://tex.z-dn.net/?f=%3D2%2A%5Cpi%20%2A30000%2A9.46%2A10%5E15%2F250000)
=7.13![*10^15s](https://tex.z-dn.net/?f=%2A10%5E15s)
=2.26![*10^8 years](https://tex.z-dn.net/?f=%2A10%5E8%20years)
The period of the Sun's galactic motion: 2.26=
years.
To learn more about galactic motion, refer to:
brainly.com/question/25959744
#SPJ4
<span>Viscosity is a property of the water which opposes the relative motion between the two surfaces of the water that are moving at different velocities. In simple terms, viscosity of water means friction between the molecules of water. Factors affecting viscosity of water
1. TemperatureTemperature strongly influences a fluid’s viscosity. Viscosity decreases with increasing temperature and vice versa.
2. PressureNormally, an increase in pressure causes viscosity to increase.
3. ConcentrationConcentration has also direct relation with the viscosity.<span>
</span></span>
Answer:
Obviously the answer is Sun...
Visible light ultraviolet rays radio waves infrared waves