Answer:
The “terminal speed” of the ball bearing is 5.609 m/s
Explanation:
Radius of the steel ball R = 2.40 mm
Viscosity of honey η = 6.0 Pa/s
![\text { Viscosity has Density } \sigma=1360 \mathrm{kg} / \mathrm{m}^{3}](https://tex.z-dn.net/?f=%5Ctext%20%7B%20Viscosity%20has%20Density%20%7D%20%5Csigma%3D1360%20%5Cmathrm%7Bkg%7D%20%2F%20%5Cmathrm%7Bm%7D%5E%7B3%7D)
![\text { Steel has a density } \rho=7800 \mathrm{kg} / \mathrm{m}^{3}](https://tex.z-dn.net/?f=%5Ctext%20%7B%20Steel%20has%20a%20density%20%7D%20%5Crho%3D7800%20%5Cmathrm%7Bkg%7D%20%2F%20%5Cmathrm%7Bm%7D%5E%7B3%7D)
![\left.\mathrm{g}=9.8 \mathrm{m} / \mathrm{s}^{2} \text { (g is referred to as the acceleration of gravity. Its value is } 9.8 \mathrm{m} / \mathrm{s}^{2} \text { on Earth }\right)](https://tex.z-dn.net/?f=%5Cleft.%5Cmathrm%7Bg%7D%3D9.8%20%5Cmathrm%7Bm%7D%20%2F%20%5Cmathrm%7Bs%7D%5E%7B2%7D%20%5Ctext%20%7B%20%28g%20is%20referred%20to%20as%20the%20acceleration%20of%20gravity.%20Its%20value%20is%20%7D%209.8%20%5Cmathrm%7Bm%7D%20%2F%20%5Cmathrm%7Bs%7D%5E%7B2%7D%20%5Ctext%20%7B%20on%20Earth%20%7D%5Cright%29)
While calculating the terminal speed in liquids where density is high the stokes law is used for viscous force and buoyant force is taken into consideration for effective weight of the object. So the expression for terminal speed (Vt)
![V_{t}=\frac{2 \mathrm{R}^{2}(\rho-\sigma) \mathrm{g}}{9 \eta}](https://tex.z-dn.net/?f=V_%7Bt%7D%3D%5Cfrac%7B2%20%5Cmathrm%7BR%7D%5E%7B2%7D%28%5Crho-%5Csigma%29%20%5Cmathrm%7Bg%7D%7D%7B9%20%5Ceta%7D)
Substitute the given values to find "terminal speed"
![\mathrm{V}_{\mathrm{t}}=\frac{2 \times 0.0024^{2}(7800-1360) 9.8}{9 \times 6}](https://tex.z-dn.net/?f=%5Cmathrm%7BV%7D_%7B%5Cmathrm%7Bt%7D%7D%3D%5Cfrac%7B2%20%5Ctimes%200.0024%5E%7B2%7D%287800-1360%29%209.8%7D%7B9%20%5Ctimes%206%7D)
![\mathrm{V}_{\mathrm{t}}=\frac{0.0048 \times 6440 \times 9.8}{54}](https://tex.z-dn.net/?f=%5Cmathrm%7BV%7D_%7B%5Cmathrm%7Bt%7D%7D%3D%5Cfrac%7B0.0048%20%5Ctimes%206440%20%5Ctimes%209.8%7D%7B54%7D)
![\mathrm{V}_{\mathrm{t}}=\frac{302.9376}{54}](https://tex.z-dn.net/?f=%5Cmathrm%7BV%7D_%7B%5Cmathrm%7Bt%7D%7D%3D%5Cfrac%7B302.9376%7D%7B54%7D)
![\mathrm{V}_{\mathrm{t}}=5.609 \mathrm{m} / \mathrm{s}](https://tex.z-dn.net/?f=%5Cmathrm%7BV%7D_%7B%5Cmathrm%7Bt%7D%7D%3D5.609%20%5Cmathrm%7Bm%7D%20%2F%20%5Cmathrm%7Bs%7D)
The “terminal speed” of the ball bearing is 5.609 m/s
Answer:
C. Just measure the volume of the container it is in
Explanation:
Another why of measuring the volume of gas is by filling a contractor with water then in invert a glass jar air will miss place the space taken by water then measure the volume of water misplaced to get the volume to air
I cant really say but i believe it is called extinction
Answer: B
Explanation:
Biosphere breaks down rock of the geosphere (plant roots), but when it comes to soil, minerals of the geosphere feed the plants. Biosphere and atmosphere interact through animal and plant respiration of oxygen and carbon dioxide. Geosphere creates, destroys and keeps various biosphere places safe.
Hello.
The answer is <span>remains the same.
</span>The total amount of energy stays the same because the 1st Law of Thermodynamics states that energy can neither be created nor destroyed, it can only change forms. <span>So the chemical energy is just being converted into heat and light.
</span>
Have a nice day