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3 years ago

Air pollution affects everyone equally. true or false

Physics

2 answers:

soldi70 [24.7K]3 years ago

8 0

This is false. People with asthma or allergies are affected more than people without those conditions.

Nana76 [90]3 years ago

7 0

False. There are people in different locations that do not use anything to pollute the air, so they have less pollution. There is also people who have asthma or react to pollution. Hope this helped!

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Which BEST describes the difference between speed and velocity?

kirill [66]

Answer : The correct option is, (D) Velocity includes rate of change and direction.

Explanation :

Speed : Speed is defined as the distance traveled by an object with respect to the time taken. It is a scalar quantity that means it tell us about the magnitude of an object not direction.

Velocity : Velocity is defined as the rate of change of position of an object with respect to the time. It is a vector quantity that means it tell us about the magnitude and direction of an object.

The only difference between the speed and the velocity is that the velocity tell us about magnitude and direction but speed tell us about magnitude only.

Hence, the correct option is, (D) Velocity includes rate of change and direction.

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3 years ago

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Que propiedad de la Luz se produce cuando ves tu cara reflejada en la cuchara?

kramer

Answer:

refracción

Explanation:

I don't speak spanish but that's the answer

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3 years ago

A force of 100. newtons is used to move an object a distance of 15 meters with a power of 25 watts. Find the time it takes to do

Flauer [41]

<h3>It takes 60 seconds to do the work</h3>

Solution:

Given that,

Force = 100 newtons

Distance = 15 meters

Power = 25 watts

To find: time it takes to do the work

Find the work done:

$work = force \times displacement\\\\work = 100\ newtons \times 15\ meters\\\\work = 1500\ joule$

Find the time taken

$power = \frac{work}{time}\\\\25\ watts = \frac{1500\ joule}{time}\\\\time = \frac{1500\ joule}{25\ watt}\\\\time = 60\ second$

Thus it takes 60 seconds to do the work

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3 years ago

This picture represents the electric field diagram between two particles with static charges. Do the two particles have the same

dexar [7]

Answers:

No, They will attract each other, B, and neither direction

Explanation:

Since the two already presented particles in the diagram represent both opposing charges due to the direction of the arrows (the arrows facing away from the particle shows a positive charge and the particles facing towards the particle show a negative charge), not only because of this but as the arrows between the particles show an attracting magnetic field, then it can be concluded that the particles will attract to each other and if another particle was introduced into the diagram of a positive charge, then it would attract to the negatively charged particle. If you have any questions or need further explanation, please comment below. E2021, have a great day.

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3 years ago

A car travels west for 240 km in 4 h. what is the car's velocity?

nalin [4]

The velocity is 60 because you divide your distance by your time (240÷4=60)

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3 years ago

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