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3 years ago

How do exhaust from cars affect the environment

Physics

1 answer:

Margaret [11]3 years ago

8 0

Answer:

Car pollutants, like exhausts, cause immediate and long-term effects on the environment. Car exhausts emit a wide range of gases and solid matter, causing global warming, acid rain, and harming the environment and human health. Engine noise and fuel spills also cause pollution.

Hope this helps!! :D

Please thank and vote brainliest if this helps

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Brainliest!! Please help with number 4 and please give me the equation too!! Brainliest!!!

Thepotemich [5.8K]

Answer:

Oooo someone is writing a answer. (Also im new to this so Idk what to really do.)

Explanation:

8 0

3 years ago

Read 2 more answers

A polar bear runs at a speed of 11 m/s and has a mass of 380.2 kg. How much Kinetic energy does the bear have?

Yanka [14]

Answer:

$\boxed{\sf Kinetic \ energy \ of \ the \ bear (KE) = 23002.1 \ J}$

Given:

Mass of the polar bear (m) = 6.8 kg

Speed of the polar bear (v) = 5.0 m/s

To Find:

Kinetic energy of the polar bear (KE)

Explanation:

Formula:

$\boxed{ \bold{\sf KE = \frac{1}{2} m {v}^{2} }}$

Substituting values of m & v in the equation:

$\sf \implies KE = \frac{1}{2} \times 380.2 \times {11}^{2}$

$\sf \implies KE = \frac{1}{ \cancel{2}} \times \cancel{2} \times 190.1 \times 121$

$\sf \implies KE = 190.1 \times 121$

$\sf \implies KE = 23002.1 \: J$

$\therefore$

Kinetic energy of the polar bear (KE) = 23002.1 J

5 0

3 years ago

Distance is the length of a path followed by a particle. The displacement of a particle is defined as its change in position in

worty [1.4K]

Answer:

a. True

Explanation:

Distance is described with only magnitude. It is defined as the total path covered by an object, in other words it is the length of a path followed by a particle.

Displacement is described with both magnitude and direction. It is distance traveled in a specified direction or change in position in some time interval.

Therefore, the correct option is " a. True"

7 0

3 years ago

A 1200 kg elevator accelerated upwards at 2 m/s2. Draw a force diagram for the elevator. Calculate the force of tension in the c

pishuonlain [190]

Answer:

4800

Explanation:

You have to multiply the 1200 kg and the 2 m/s2. Then multiply the other 2 by the 2400 because it was the answer to the first part now after you multiply your answer is 4800.

6 0

4 years ago

A 2kg object weighs 19.6N on earth. If the acceleration due to gravity on mars is 3.71 meters per second what is the object mass

Gre4nikov [31]

The acceleration due to gravity at the Earth's surface is 9.8 m/s/s

So a 2 kg object will accelerate at 9.8 m/s/s if it is dropped..... actually all dropped objects will accelerate at the same rate. 

The force of gravity on the object is given by Newton's 2nd Law 

F = m . a 

F = 2 . 9.8 = 19.6 N 

Now go to Mars , with a lower gravitational field strength. It only accelerates falling objects at 3.71 m/s/s 

So the force of gravity on the object is F = 2 . 3.71 = 7.42 N 

But the answer is (2) 2 kg, because the mass of the object stays the same and that is what you are asked for. 
Someone was trying to be tricky.

3 0

3 years ago