Answer:Detergent mixes with water to remove dirt and oil from clothes. Water can't remove oil and dirt from clothes. Detergent cleans by causing a chemical reaction with water to force dirt and debris out of clothing. Detergents work with water to loosen the dirt trapped in the material of clothing and clean them away.
Explanation:May i plz have brainlist only if u wanna give me brainlist though have an nice day!
Answer:
Formula for constant-speed = Total distance / Total time taken
Explanation:
<span>The rain shadow effect would be most evident in the “Eastern” direction in relative to the Rocky Mountains.
A “Rain-Shadow” is a dry area that is formed on the side of the mountains which are away from the wind. The rain-producing weather systems are blocked by the mountains and a shadow of dryness is cast on that area, without much moisture left in the air.
The Continental Divide in America acts as a great barrier for precipitation.
The Rocky Mountains are a major mountain range that is present in the western North America and stretch for more than 3,000 miles across the northern part of British Columbia, western side of Canada, till New Mexico, in the South-Western part of the US.
The low pressure systems are known to approach from the south to skirt the Rocky Mountains. They generate high precipitation on the eastern side. However, there is little or no precipitation on the western slope.
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Answer:
The difference between the cost of operating LED and incandescent bulb is $5.1
Explanation:
We are given the cost of electricity that is 12.75 cents per kWh. We want to find out the difference in the operating cost of an incandescent and LED bulb for a time period of 2,000 hours.
Since we are not given the rating of the incandescent bulb and LED bulb, we will assume their ratings.
For a light intensity of 250 Lumens;
The average rating of an LED bulb is approximately 5 Watts.
The average rating of an incandescent bulb is approximately 25 Watts.
Now lets find out the kWh of each bulb.
Energy = Power×Time
For LED bulb:
E = 5×2,000 = 10,000 Wh
Divide by 1000 to convert into kWh
E = 10,000/1000 = 10 kWh
Cost = 12.75×10 = 127.5 cents
Cost = $1.27
For Incandescent bulb:
E = 25×2,000 = 50,000 Wh
Divide by 1000 to convert into kWh
E = 50,000/1000 = 50 kWh
Cost = 12.75×50 = 637.5 cents
Cost = $6.37
Difference in Cost:
Difference = $6.37 - $1.27 = $5.1
Therefore, the difference between the cost of operating LED and incandescent bulb is $5.1.
Explanation:
the unknown resistance is 9ohm
