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NikAS [45]
2 years ago
6

8. A meter reader determines that a business has used 5000 kW.h of energy in 4 months. If

Physics
1 answer:
ladessa [460]2 years ago
7 0

Answer:

ENERGY AND COST. One kllowatt hour is 1,000 watts of power for one hour of time. ... Determine power: P = V XI ... Calculate the total kilowatt hours used. ... If the electric costs are 150 per kWh, how much does it cost to run the refrigerator in ... 8. A room was lighted with three 100-watt bulbs for 5 hours per day. If the cost of.

Explanation:

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Daryl ties a rope to a brick and lifts the brick straight up. the free body diagram below shows the brick when it is suspended a
Aleks04 [339]

Answer:

C. Tension

Explanation:

The tension in the cord occurs because of the muscle power of Daryl, who lifts the brick. While doing so, Daryl needs to overcome the gravitational pull on the brick.

EXTRA:

If the brick was much heavier, than Daryl's muscles would not be able to overcome the the gravitational pull on that brick, and then the much heavier brick would remain stationary on the ground, despite the efforts made by Daryl.

7 0
3 years ago
Read 2 more answers
Select the true statements: check all that apply check all that apply oxidizing agents can convert co into co2. a reducing agent
andrew11 [14]

Answer:

1.) True

2.) True

3.) False

Explanation:

1.) Oxidizing agents can convert co into co2.

This is true

Carbon monoxide burns in the oxygen to produce carbon dioxide

2.) A reducing agent gets oxidized as it reacts.

This is true

Because it loses electrons and is oxidized in a chemical reaction. 

3.) If something is reduced, it is formally losing electrons.

This is false.

If something is reduced, it is gaining electrons.

7 0
3 years ago
Three light bulbs are wired in series. What happens if one of these light bulbs burn out
devlian [24]
The resistance would go down since you essentially have one less resistor 
7 0
3 years ago
Read 2 more answers
Question 20 of 20
Sphinxa [80]

Answer:

a

Explanation:

hI I

6 0
2 years ago
What property of an electromagnetic wave changes when the wave is encoded with analog information?
Licemer1 [7]

Answer:

Amplitude and Frequency

Explanation:

Analog signals are composed of continuous waves that can have any values for frequency and amplitude. These waves are smooth and curved.

Radio transmissions are a combination of two kinds of waves: audio frequency waves that represent the sounds being transmitted and radio frequency waves that "carry" the audio information. All waves have a wavelength, an amplitude and a frequency as shown in the figure. These properties of the wave allow it to be modified to carry sound information.

The two most common types of modulation used in radio are amplitude modulation (AM) and frequency modulation (FM). Frequency modulation minimizes noise and provides greater fidelity than amplitude modulation, which is the older method of broadcasting . Both AM and FM are analog transmission systems, that is, they process sounds into continuously varying patterns of electrical signals which resemble sound waves.

7 0
3 years ago
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