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lys-0071 [83]
4 years ago
9

Classify the objects as being magnetic or nonmagnetic.

Physics
2 answers:
anygoal [31]4 years ago
8 0

Answer:

Magnetic substances: steel tank, iron ball, nickel hinge

Non magnetic substances: wooden table, glass marbles, silver medal.

Explanation:

The substances which experience a force of attraction when placed in a magnetic field are called magnetic substances. For example, iron, cobalt and nickel.

The substances which do not experiences a force of attraction when placed in a magnetic field are called non magnetic substances. For example, wood, rubber, glass, etc.

weqwewe [10]4 years ago
3 0

Answer:

Magnetic substances: steel tank, iron ball, nickel hinge

Non magnetic substances: wooden table, glass marbles, silver medal.

Explanation:

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Natasha2012 [34]

Answer:

no

Explanation:

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4 0
3 years ago
The graph shows projected changes in the populations of the world.
malfutka [58]

Answer: C. Africa

Explanation:

The data given on the graph shows that:

Asia will grow from around 1,300 million to 5,000 million in 2050 which is an increase of:

= 5,000 /1,300 = 3.84 times

Europe will decrease over that period.

Africa will go from around 300 million to 2,000 million which is an increase of:

= 2,000 / 300

= 6.67 times

Mexico

, Central America, Caribbean Islands:

= 900 / 120

= 7.5 times

United States,  Canada, and Greenland:

= 400/120

= 3.33

Oceania:

= 50 / 13

= 3.85

From the options give, Africa will see the greatest increase at 6.67 times its population in 1950.

3 0
3 years ago
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Ahat [919]
Force
Newton, abbreviated as N
7 0
3 years ago
You hear a fire truck with a certain intensity, and you are about 1 mile away. Another person hears the same fire truck with an
marin [14]

The intensity of sound is just like the force of gravity, the force between electric charges, and the intensity of light . . . they all DEcrease at the same rate that the SQUARE of the distance INcreases.

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√10 = 3.1622 ...

So the second guy is about <em>3.16 miles</em> from the fire truck.  

4 0
3 years ago
Does the resistance of an object depend on the path current takes through it? Consider, for example, a rectangular bar—is its re
SVETLANKA909090 [29]

Answer:

Explanation:

An object's resistance depends on its form and the substance it is made from.  The electrical resistance R of the cylinder, as you might expect, is directly proportional to its length L, similar to a pipe's resistance to fluid flow. The longer the cylinder, the more charges of collisions with its atoms can occur. The bigger the cylinder diameter, the more current it can carry.

8 0
4 years ago
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