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Alenkinab [10]
3 years ago
11

Solar panels generate electricity using photovoltaic cells that receive sunlight. to protect these cells from moisture while all

owing sunlight to pass through, engineers must design a cover for the solar panel that is
1. waterproof and transmits light.

2. very flexible and reflects lights.

3. stronger than steel and bends light.

4. cold to touch and absorbs light
Physics
2 answers:
ICE Princess25 [194]3 years ago
7 0

Answer:

waterproof and transmits light.

Explanation:

AURORKA [14]3 years ago
4 0

Answer:

waterproof and transmits light.

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When a new path of lesser resistance is made for an existing circuit a(n) _____________ circuit occurs.
Margaret [11]

When a new path of lesser resistance is made for an existing circuit a(n) short circuit occurs.

<h3>What is short circuit?</h3>

An electrical circuit short circuit is when two nodes that are supposed to be connected at different voltages make an improper connection. This leads to an electric current that can damage circuits, cause overheating, fire, or explosions, and is only constrained by the network's remaining nodes' equivalent Thevenin resistance. While short circuits are typically the result of a failure, they can occasionally be brought on purpose, such as when voltage-sensing crowbar circuit protectors are being installed.

An electrical connection that requires two nodes to have the same voltage is known as a short circuit in circuit analysis. Since there is no resistance and hence no voltage drop across the link in a "perfect" short circuit, there is no short circuit.

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5 0
2 years ago
A 7.8 µF capacitor is charged by a 9.00 V battery through a resistance R. The capacitor reaches a potential difference of 4.20 V
Vaselesa [24]

Answer:

655128 ohm

Explanation:

C = Capacitance of the capacitor = 7.8 x 10⁻⁶ F  

V₀ = Voltage of the battery = 9 Volts  

V = Potential difference across the battery after time "t" = 4.20 Volts  

t = time interval = 3.21 sec  

T = Time constant

R = resistance  

Potential difference across the battery after time "t" is given as  

V = V_{o} (1-e^{\frac{-t}{T}})

4.20 = 9 (1-e^{\frac{-3.21}{T}})

T = 5.11 sec  

Time constant is given as  

T = RC  

5.11 = (7.8 x 10⁻⁶) R  

R = 655128 ohm

3 0
3 years ago
A car has a mass of 2,500 kg. The car is accelerating at 0.5 m/s2. What is the net force acting on the car?
tekilochka [14]

Answer:

force:mass*acceleration

2500kg*0.5m/s2

1250N

6 0
3 years ago
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rodikova [14]

Answer:

Because sound doesn't move in vacuum (of space)

8 0
3 years ago
A wave is a _____<br> that carries ____<br> from one place to another.
sertanlavr [38]

Answer:

A wave is a disturbance that carries energy from one place to another.

Explanation:

5 0
3 years ago
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