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blsea [12.9K]
3 years ago
7

State two advantages of using an efficient water heater in a kitchen​

Physics
1 answer:
poizon [28]3 years ago
3 0

Answer:

Polyurethane foam insulation that is environmentally safe, and that increases heat conservation

• A polybutelene tank with a layered fiberglass exterior

• Automatic thermostats that allow you to set water temperature at different levels at different times

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What property or properties of a wave determine it's speed?
mash [69]
The properties of the wave don't determine its speed. The properties of the medium do. You can FIND the speed by measuring the wave's frequency and wavelength.
7 0
4 years ago
Nitric acid (HNO3) and potassium hydroxide (KOH) combine in a neutralization reaction to form water and a salt. Which of the fol
mrs_skeptik [129]

Answer:

The answer to your question is KNO₃

Explanation:

Data

HNO₃

KOH

neutralization reaction

Process

1.- In a neutralization reaction an acid reacts with an alkali and the products are water and a binary or ternary salt.

Reactants             acid = HNO₃      alkali = KOH

A neutralization reaction is a double displacement reaction so the salt formed is.

                   HNO₃  +  KOH  ⇒   H₂O  + KNO₃

Potassium nitrate

5 0
3 years ago
Read 2 more answers
You walked a dog 0.75 miles. how many kilometers did you walk? (1 mile equals about 1.61 km)
Digiron [165]
What we have so far:
*Distance you walked the dog = 0.75 miles
*Conversion: 1 mile is approximately 1.61 kilometers

What we are trying to find:
*Distance you walked the dog in kilometers.

To solve this problem we must:
*We must employ conversion first.
Step 1) 0.75miles x 1.61km/1miles <--- Multiplication will be employed.

Step 2) 0.75 x 1.61/1 (km)<--- notice that we deleted the unit "miles". We did that to make sure that the result will be in kilometers (km).

Step 3) 0.75 x 1.61(km) <--- Since we are already done with the conversion process, we now have to multiply the distance and the conversion factor.

Step 4) 1.2075km <--- Raw result.

Step 5) Rounding it up to two decimal places: 1.21km

Therefore, the correct answer is: D. 1.21km
7 0
4 years ago
Based on the graph of velocity over time, which could be the initial velocity and the final velocity for this graph?
dolphi86 [110]
The graph is showing a constant velocity as the line is horizontal. The initial speed is equal to the final speed as there is no changing in acceleration. The second statement is the correct statement

Initial = 2.5 m/s
Final = 2.5 m/s
3 0
3 years ago
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What behavior of light proves that it is a wave? Hint: will this ONLY happen because light is a wave, or could it also be true o
kiruha [24]
It’s red shift and blue shift because This only occurs when the frequency of the wave is made longer or shorter due to the movement of the source relative to the observer
4 0
3 years ago
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