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Aleks04 [339]
3 years ago
15

An experiment discovered that a particular material was a poor conductor of electricity. This material would most likely be used

as a. A. Conductor, B. Insulator, C. Resistor
Physics
2 answers:
LenaWriter [7]3 years ago
8 0
<span>Someone’s mindset has a powerful influence on his/her perspective because a mindset __________.
</span><span><span>A.involves the way he/she is used to thinking about things </span><span>B.can easily be changed</span><span>C.is not affected by his/her values</span><span>D.<span>cannot be influenced by what happened to someone in the past</span></span></span>
Fittoniya [83]3 years ago
3 0
Resistor because a conductor needs to be a good conductor of electricity and an insulator needs to not conduct electricity at all. Resistors control the flow of current by not being good conductors but they need to conduct somewhat
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What is the momentum of a two-particle system
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Answer:

-67,500 kgm/s

Explanation:

1300 * 20 + 1100 * (-85) = -67,500 kgm/s

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Why don’t metals break when hit with hammer
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Because metallic bonds involve all of the metal atoms in a piece of metal sharing all of their valence electrons with "delocalized" bonds.

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At the _______________ point, the particles in an object have not kinetic energy
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The freezing point ..... :)
4 0
3 years ago
6. A 2-kg ball B is traveling around in a circle of radius r1 = 1 m with a speed (vB)1 = 2 m/s. If the attached cord is pulled d
kipiarov [429]

Answer:

Explanation:

Given that,

Mass of ball m = 2kg

Ball traveling a radius of r1= 1m.

Speed of ball is Vb = 2m/s

Attached cord pulled down at a speed of Vr = 0.5m/s

Final speed V = 4m/s

Let find the transverse component of the final speed using

V² = Vr²+ Vθ²

4² = 0.5² + Vθ²

Vθ² = 4²—0.5²

Vθ² = 15.75

Vθ =√15.75

Vθ = 3.97 m/s.

Using the conservation of angular momentum,

(HA)1 = (HA)2

Mb • Vb • r1 = Mb • Vθ • r2

Mb cancels out

Vb • r1 = Vθ • r2

2 × 1 = 3.97 × r2

r2 = 2/3.97

r2 = 0.504m

The distance r2 to the hole for the ball to reach a maximum speed of 4m/s is 0.504m

The required time,

Using equation of motion

V = ∆r/t

Then,

t = ∆r/Vr

t = (r1—r2) / Vr

t = (1—0.504) / 0.5

t = 0.496/0.5

t = 0.992 second

7 0
3 years ago
A person that is sleeping on her stomach rolls over so that she is now sleeping on her back. The person moved from the ________
Elza [17]

Answer:

c. prone; supine

Explanation:

3 0
1 year ago
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