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NISA [10]
3 years ago
14

Which scenario describes a renewable resource being used for energy?

Physics
2 answers:
BabaBlast [244]3 years ago
6 0

Answer:

D

Explanation:

Mnenie [13.5K]3 years ago
5 0

Its D A company generates electricity using a rivers current

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A tree falls and rots on the forest floor the next year new trees begin to grow in that spot what is that an example of
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The cycle of life because the tree starts to grow back in that spot.
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Water is most dense at 4 degrees Celsius. Since at this temperature 1 ml of water has a mass of 1 g. What is its density?
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The density is 1. 1/1=1
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What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same?
jek_recluse [69]
Resistance of the wire can be calculated using the following rule:
R = (ρ*L) / A 
where:
R is the resistance
ρ is the resistivity of the material of the wire
L is the length of the wire
A is the area of the wire

From the above relation, we can deduce that:
The resistance of the wire is directly proportional to its length assuming all other factors are constant
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2. How can we make the percent error value as minimal as possible?
andriy [413]

Answer:

Percent error can be reduced by improving both your accuracy and precision.

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3 years ago
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An electrically neutral model airplane is flying in a horizontal circle on a 2.0-m guideline, which is nearly parallel to the gr
amm1812

Answer:

q=3.5*10^-4

Explanation:

<u>concept:</u>

The force acting on both charges is given by the coulomb law:

F=kq1q2/r^2

the centripetal force is given by:

Fc=mv^2/r

The kinetic energy is given by:

KE=1/2mv^2

<u>The tension force:</u>

<u><em>when the plane is uncharged </em></u>

T=mv^2/r

T=2(K.E)/r

T=2(50 J)/r

T=100/r

<u><em>when the plane is charged </em></u>

T+k*|q|^2/r^2=2(K.E)charged/r

100/r+k*|q|^2/r^2=2(53.5 J)/r

q=√(2r[53.5 J-50 J]/k)                                          √= square root on whole

q=√2(2)(53.5 J-50 J)/8.99*10^9

q=3.5*10^-4

5 0
3 years ago
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