Answer:
Explanation:
<u>Definition:</u> Noise pollution is generally defined as regular exposure to elevated sound levels that may lead to adverse effects in humans or other living organisms.
<u>Measures to be taken:</u>
- international bodies like the WHO agree that awareness of noise pollution is essential to beat this invisible enemy. For example: avoid very noisy leisure activities, opt for alternatives means of transport such as bicycles or electric vehicles over taking the car, do your housework at recommended times, insulate homes with noise-absorbing materials, etc. Educating the younger generation is also an essential aspect of environmental education.
- Governments can also take measures to ensure correct noise management .
- Close the Windows.
- Put on Earplugs. …
- Improve your Insulation. …
- Invest in Noise-Canceling Headphones. …
- Do Wall-to-Wall Carpeting. …
- Install a Fence. …
- Be Creative with the Office or House Layout. …
- Invest in Noise-Friendly Flooring..
Answer:
The temperature must the ring be heated so that the sphere can just slip through is 106.165 °C.
Explanation:
For brass:
Radius = 1.3590 cm
Initial temperature = 23.0 °C
The sphere of radius 1.3611 cm must have to slip through the brass. Thus, on heating the brass must have to attain radius of 1.3611 cm
So,
Δ r = 1.3611 cm - 1.3590 cm = 0.0021 cm
<u>The linear thermal expansion coefficient of a metal is the ratio of the change in the length per 1 degree temperature to its length.</u>
<u>Thermal expansion for brass = 19×10⁻⁶ °C⁻¹</u>
Thus,
Also,
So,
Solving for final temperature as:
<u>Final temperature = 106.165 °C</u>
Obviously C. Search up "White Stork" and it's the same Image
Answer:
Gasoline is a liquid. Neon is a noble or inert gas, skin is solid
Explanation:
Answer: The final answer is 1,700 J
Explanation: According to first law of thermodynamics:
=Final energy-initial energy=Change in internal energy
q = heat absorbed or released
w = work done by or on the system
w = work done by the system= {Work done by the system is negative as the final volume is greater than initial volume}
q = +500J {Heat absorbed by the system is positive}
w = work done by the system = -300J
U2- 1500J= + 500J --300J
U2= 1700J