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3 years ago

Ways to stop pollution

Physics

1 answer:

Ghella [55]3 years ago

3 0

Answer:

on days when high particle levels are expected, take these extra steps to reduce pollution:

Explanation:

1) reduce the number of trips you take in your car.

2) reduce or eliminate fireplace and wood stove use.

3) avoid burning leaves, trash, and other materials.

4) avoid using gas-powered lawn and garden equipment.

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A fixed 15.3-cm-diameter wire coil is perpendicular to a magnetic field 0.77 T pointing up. In 0.20 s , the field is changed to

maksim [4K]

Answer:

Induced emf will be 0.468 volt

Explanation:

We have given diameter of wire d = 15.3 cm

So radius $r=\frac{d}{2}=\frac{15.3}{2}=7.65cm$

So area $A=\pi r^2=3.14\times (7.65)^2=183.76\times 10^{-4}m^2$

Change in magnetic field dB = 0.26 - 0.77 = -0.51 T

Time for change in magnetic field dt = 0.26 sec

We know that emf is given by $e=\frac{-d\Phi }{dt}=-A\frac{dB}{dt}=-183.76\times 10^{-4}\times \frac{-0.51}{0.2}=0.0468volt$

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3 years ago

When asked to name all the forces on a marker sitting in equilibrium on a desk, a student responds: “Since the marker on the des

guapka [62]

Answer:

The forces acting on the pen which is still on the table can have two forces acting on them. The forces are gravitational force and the equal and opposite force to the gravitational forces.

The equal and opposite forces that is applied on the pen keeps the pen still on the table.

So, the statement that no force is applied on the pen which is kept still on the table is wrong as two forces are applied on the pen.

As both the forces are equal and opposite so it is cancelled and is still.

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3 years ago

Altitude is the angle measured above ____. North Pole horizon equator zenith

juin [17]

Altitude is the angle measured above the horizon

5 0

3 years ago

Read 2 more answers

A) explain how the data matches each line on the graph (give name and line letter for each)

stepladder [879]

The answer you have is right good job 12

3 0

2 years ago

The ______ is the component of communication through which information is transferred.

MrMuchimi

The medium is the component of communication through which information is transferred. The correct option in the given question is option "c". Medium is actually the means through which communication is done. It can be a an oral message or written message or it can be nonverbal or symbolic. Any kind of message transmission requires a medium and without an medium no message can be transmitted. Whenever people talk on the telephone or write a letter, there has to be a medium for transmitting the message to the person on the other side.

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3 years ago