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kramer
4 years ago
5

How would a physicist be involved in addressing concerns about air pollution

Chemistry
1 answer:
AURORKA [14]4 years ago
7 0
Air pollution is the addition of impurities to the atmosphere. A physicist would be concerned because pollutants can reduce sunlight reaching the earth and this quantity, radiation, would fall under the scope of a physicist. Physicists might also be concerned with the absorption of heat by certain pollutants. They would be concerned with studying how much heat is absorbed by each molecule to ascertain the impact of the entire contamination in the atmosphere. 
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Which has a greater speed,a heron that travels 600m in 60 seconds or a duck that travels 60m in 5 seconds? explain
Semmy [17]
In order to find out the answer to this problem, you need to know how to find the unit rate. A unit rate a rate that has a denominator of 1. You find the unit rate because the problem is asking you to find the faster speed, but the ratios are different.
So 600m in 60 sec you divide both by 60. It comes out as 10m in 1 sec for the heron.
60m in 5 sec is 12m in 1 sec for the duck.
Compare the heron to duck. The heron travels faster.
Give 5 stars if it helped!! :)

6 0
4 years ago
What kind of nuclear reaction occurs in the following reactions?
KatRina [158]

Answer:

No 1 is fission

while no 2 is fusion

Fission is splitting on nucleus while fusion is forming heavier nucleus with nuclei

8 0
3 years ago
Vanillin (used to flavour vanilla ice cream and other foods) is the substance whose aroma the human nose detects in the smallest
Rudiy27

Answer:

The cost is $0.063.

Explanation:

First, we need to express the volume of the hangar in liters. We know that 1 ft³ = 28.31 L, so using proportions:

5.0 \times 10^{7} ft^{3} .\frac{28.31L}{1ft^{3} } =1.4 \times 10^{9} L

The amount of vanillin required would be:

1.4 \times 10^{9} L.\frac{2.0\times 10^{-11}g }{1L} =0.028g

Finally, the price for such amount of vanillin is:

0.028g.\frac{ \textdollar 112}{50g}=  \textdollar 0.063

6 0
3 years ago
Which of the following best defines base isolation?(1 point)
jekas [21]

Base isolation is a method of earthquake resistant engineering where a structure is separated from the ground by isolation units that reduces the impact of seismic vibration energy. So, the last answer choice would be the best definition.  

3 0
3 years ago
What is the mass of 0.513 mol Al2O3? Give your answer to the correct number of significant figures. (Molar mass of Al2O3 = 102.0
prisoha [69]
.513mol x (102g/1mol)

Essentially, this is .513 x 102
Which equals: 52.326
But because you can only have 3 significant figures, your answer is:
52.3 grams

I hope this Helps!
7 0
3 years ago
Read 2 more answers
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