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Gala2k [10]
3 years ago
5

List three ways a a home may become more energy efficient.

Physics
1 answer:
Natali [406]3 years ago
4 0

Answer:

1. Installing solar panels on the roof. This is an example of renewable energy, and solar panels help provide electricity for a home.

2. Using LED lights instead of traditional lightbulbs. The modern LED lights use much less electricity and function up to 90% more efficiently than the traditional lightbulbs.

3. Using rain barrels to collect water from the roof. Installing rain barrels to collect rainwater to water your plants and garden is a great way to save water and cut down on your water bill.

Hope this helps! :)

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Why does light refract when it encounters the glass in the lens
Kobotan [32]
Hey there!

<span>because it slows down, which causes it to bend is the reason why light refracts when it encounters the glass in the lens

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3 years ago
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As a roller coaster car crosses the top of a 50-m-diameter loop-the-loop, its apparent weight is the same as its true weight.
scZoUnD [109]

Answer:22.36 m/s

Explanation:

Given

the diameter of loop d=50 m

the radius of loop r=25 m

At the top position, we can write,

weight and Normal reaction combination will provide the centripetal force i.e.

R+W=\frac{mv^2}{r}

R=W\quad \quad [\text{apparent weight =Actual weight}]

2W=2mg=\frac{mv^2}{r}

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3 0
3 years ago
What is electric resistance?
andriy [413]
Electrical resistance is opposition to the flow of current in an electric circuit: resistance converts electrical energy to thermal energy, and in this regard is similar to mechanical friction. Resistances are said to dissipate electrical energy as heat.
4 0
3 years ago
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Suppose you weigh 658 N, and when you stand on one foot, your weight is spread out over an area of 1.130×10-2 m2. What pressure
podryga [215]

Answer:

58230.08849 Pa

Explanation:

F = W = Weight of the person = 658 N

A = Area to which the force is applied = 1.13\times 10^{-2}\ m^2

When the force is divided by the area to which the force is applied we obtain the pressure

P=\frac{F}{A}\\\Rightarrow P=\frac{658}{1.13\times 10^{-2}}\\\Rightarrow P=58230.08849\ N/m^2=58230.08849\ Pa

Hence, pressure the foot exerts on the floor is 58230.08849 Pa

5 0
3 years ago
Distance divided by time is known as
FinnZ [79.3K]

Answer: Speed

Explanation:

5 0
3 years ago
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