Pascal's principle
Explanation:
Pascal principle states that "a change in pressure at any point in a fluid in a closed container is transmitted equally and unchanged in all directions throughout the fluid".
Pascal principle is used to solve for the pressures in fluid.
- Hydraulic lift works on pascal principle.
- Pascal principle suggests that a pressure change in an enclosed fluid is transmitted uniformly to all of its parts.
- The principle was established by Mathematician Blaise Pascal
learn more:
Osmotic pressure brainly.com/question/5041899
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Answer:
1421 seconds or 23.67 minutes
Explanation:
Q = Heat = 1200 W
c = Specific heat of human body = 3480 J/kgK
= Change in temperature = (44-37)°C
t = Time taken
![Q=\dfrac{mc\Delta T}{t}\\\Rightarrow t=\dfrac{mc\Delta T}{Q}\\\Rightarrow t=\dfrac{70\times 3480\times (44-37)}{1200}\\\Rightarrow t=1421\ s](https://tex.z-dn.net/?f=Q%3D%5Cdfrac%7Bmc%5CDelta%20T%7D%7Bt%7D%5C%5C%5CRightarrow%20t%3D%5Cdfrac%7Bmc%5CDelta%20T%7D%7BQ%7D%5C%5C%5CRightarrow%20t%3D%5Cdfrac%7B70%5Ctimes%203480%5Ctimes%20%2844-37%29%7D%7B1200%7D%5C%5C%5CRightarrow%20t%3D1421%5C%20s)
The time student jogs before irreversible body damage occurs is 1421 seconds or 23.67 minutes
Answer:
b.) All these technologies use radio waves, including high-frequency microwaves
d.) Microwave ovens emit in the same frequency band as some wireless Internet devices.
e.) The radiation emitted by wireless Internet devices has the shortest wavelength of all the technologies listed above.
f.) All these technologies emit waves with a wavelength in the range of 0.10 to 10.0 m.
Explanation:
For option D. The frequency range of microwave ovens is 2450 MHz = 2.4 GHz, which intersects with wireless internet technology with range of 2.4 to 2.6 GHz.
For E, wavelenght and frequency are inversely proportional. Wireless internet service has the greatest frequency band and hence the shortest wavelenght band.
For F, in all these radiations, the highest Freq is 2.6 GHz and the lowest is 40 MHz. Wavelenght is speed of light (3x10^8 m/s) divided by the frequency.
2.6 GHz = 2.6x10^9 Hz
Wavelenght = 3x10^8 ÷ 2.6x10^9 = 0.1 m
40 MHz = 40x10^6
Wavelenght = 3x10^8 ÷ 40x10^6 = 7.5 m
Answer:
ummm cam you make the question simpler please
It'd be A. Picture one shows a chemical change. Rust is made from the iron reacting with oxygen.