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Studentka2010 [4]
3 years ago
9

Drag the tiles to the correct boxes to complete the pairs.

Physics
2 answers:
Sergeu [11.5K]3 years ago
6 0

Answer:

Sound energy to electric energy - a person talking into a microphone

Radiant energy to electric energy - sunlight falling on solar panels

Gravitational potential energy to motion energy - a ball dropped from a height

Explanation:

A person talking is the sound energy and going into an electric phone

Sunlight or Radiant energy falls onto the solar panels creating electric energy

The ball is being pulled down by gravity from a certain height, going down to the ground, it’s motion, falling

REY [17]3 years ago
3 0

a ball dropped from a height ==> gravitational potential energy to motion energy

sunlight falling on solar panels  ==> radiant energy to electric energy

a person talking into a microphone  ==> sound energy to  electric energy

______________________________________

sound energy to  electric energy  ==> a person talking into a microphone

radiant energy to electric energy ==> sunlight falling on solar panels  

gravitational potential energy to motion energy ==> a ball dropped from a height

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A plane travels 350 km south along a straight path with an average velocity of 125 km/h to the south. The plane has a 30 minute
faust18 [17]
Average Velocity = Total Displacement / Total time

1st part of journey,  350 km at velocity 125 km/h

Time = 350 / 125 = 2.8 hours.

2nd part of journey,  220 km at velocity 115 km/h

Time = 220 / 115 = 1.9 hours


Average Velocity = Total Displacement / Total time

                               = (350 + 220) / (2.8 + 1.9)

                                =   570 / 4.7  ≈ 121.3 km/hr

Average Velocity ≈ 121 km/hr due south. 

Option C. 
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3 years ago
If 0.035pC of charge is transferred via the movement of Al3+ ions, how's many of these must be transferred in total? Please add
mr Goodwill [35]

Each Al^+^3 ion contains three extra protons. Hence, the extra charge on each  Al^+^3 = 3 \times 1.6 \times 10^-^1^9 C

Total charge = 0.035 pC

Total charge (Q) = 0.035 \times 10^-^1^2 C

Let the number of Al^+^3 ions be n.

According to question:

n \times 3 \times 1.6 \times 10^-^1^9 =0.035 \times 10^-^1^2

n = \frac{0.035 \times 10^-^1^2}{3 \times 1.6 \times 10^-^1^9}

n = 7.29167 \times 10^4

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Explanation:

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ozzi

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Explanation:

According to Coulomb's law, the electrostatic force between two bodies is proportional to the product of their two charges. If the charge on A is increased this product increases in size (it must have been non-zero to begin with, since there was a force between them at first). Thus, the force between them rises.

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True! hope this helps:)
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