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o-na [289]
3 years ago
6

Recently a local government has observed that the number of people suffering from respiratory diseases has increased. What measu

res can the local government take in order to reduce health risks?
A.
force everyone to stop using cars
B.
shut down all the factories
C.
reduce public transport facilities
D.
ban carpooling systems
E.
implement standards on the smoke emissions from factories
Physics
2 answers:
Naily [24]3 years ago
6 0
E implement standards
Alexandra [31]3 years ago
5 0
E. Implement standard on the smoke emissions from factories



Hopefully this help you out have a great day
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Reeti has a mass of 51.0 kg. The Gravitron, a ride that spins so fast that the floor can be removed without the riders falling,
Serggg [28]

Answer:

L = 2774.4 kgm^{2}/s

Explanation:

Using the formula

L = mvr

Where L is angular momentum

m is mass

v is velocity

r is radius

m= 51kg , v=17m/s , r=3.2m

L = 51×17×3.2

L = 2774.4 kgm^{2}/s

7 0
3 years ago
If the magnitude of a positive charge is tripled, what is the ratio of the original value of the electric field at a point to th
ipn [44]

Answer:

b)1 :3

Explanation:

Lets that

The value of a positive charge = q

As we know that electric filed on a point charge given as

E=\dfrac{Kq}{r^2}

Where ,K=Constant

q=Charge ,r=Distance

If the value of the charge gets tripled ,q'= 3 q

Then electric filed E'

E'=\dfrac{Kq'}{r^2}

E'=\dfrac{3Kq}{r^2}

E' = 3 E

Therefore we can say that

\dfrac{E}{E'}==\dfrac{1}{3}

therefore the answer will be --

b)1 :3

3 0
3 years ago
Shante makes a diagram to compare the effects of short-term and long-term environmental changes. Which statement should she plac
irinina [24]
Answer: affect organisms
hope this helps you out .
5 0
3 years ago
A 45.2-kg person is on a barrel ride at an amusement park. She stands on a platform with her back to the barrel wall. The 3.74-m
elena-14-01-66 [18.8K]

Answer:

  • <u><em>1,230N</em></u>

Explanation:

<u>1. Name of the variables:</u>

   f:frequency\\\\ \omega:angular\text{ }speed\\\\ a_c:centripetal\text{ }acceleration\\\\ F_c:centripetal\text{ }force\\ \\ m:mass\\ \\ d:diameter\\ \\ r:radius\\ \\ g:gravitational\text{ }acceleration

<u>2. Formulae:</u>

         f=\dfrac{number\text{ }of\text{ }revolutions}{time}

          \omega=2\pi f

          a_c=\omega^2 r

           F_c=m\times a_c

<u>3. Solution (calculations)</u>

       f=\dfrac{1}{1.65s}=0.\overline{60}s^{-1}

       \omega=2\pi\times0.\overline{60}\approx 3.808rad/s

      a_c=(3.808rad/s)^2\times (3.74/2m)=27.12m/s^2

      F_c=45.2kg\times27.12m/s^2=1,225.67N\approx 1,230N

3 0
3 years ago
Steel is made of atoms of iron and carbon. Would iron and carbon form metallic bonds? Explain your answer choice.
Hatshy [7]

Sample Response: "No, steel and carbon would not form metallic bonds because metallic bonds only form between metals. Iron is a metal, but carbon is not."

7 0
3 years ago
Read 2 more answers
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