1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rama09 [41]
3 years ago
11

Compare the energy consumption of two commonly used items in the household. calculate the energy used by a 1.20 kw toaster oven,

wtoaster, which is used for 6.20 minutes and then calculate the amount of energy an 11.0 w compact fluorescent light (cfl), wlight, bulb uses when left on for 8.50 hours.
Physics
2 answers:
sergij07 [2.7K]3 years ago
7 0

Toaster oven:

Power: P=1.20 kW

Time: t=6.20 min \cdot \frac{1}{60 min/h}=0.103 h

So, the energy consumed by the oven is

E=Pt=(1.20 kW)(0.103 h)=0.124 kWh


Fluorescent light:

Power: P=11.0 W=0.011 kW

Time: t=8.50 h

So, the energy consumed by the light is

E=Pt=(0.011 kW)(8.50 h)=0.094 kWh


So, the toaster oven has consumed more energy than the fluorescent light.

slamgirl [31]3 years ago
5 0
<span>we know energy = power*time(in hour) so energy used by 1.20kw(1200 watt) toast oven used for 6.2 min(6.2/60 hour) = 1200*(6.2/60)=1200*0.103 = 124 watt hour. Energy used by 11 w cfl used for 8.50 hour = (11*8) + (11* (50/60)) = 88+9.166=97.166 watt hour.</span>
You might be interested in
Identical charges A, B, C, and D, each with a charge of magnitude 1.5 micro Coulomb, are situated at the corners of a square who
olga nikolaevna [1]
This the correct answer who will know this answer
8 0
2 years ago
Which of the following units are the Standard International units for
umka21 [38]
The answer is A. meters (m)
5 0
3 years ago
What if the earth was flat
mina [271]
Then everyone would fall off the surface
5 0
3 years ago
Read 2 more answers
Which of the following are true for acceleration?
Fittoniya [83]

The SI unit for acceleration is m/s2 ( D)

6 0
3 years ago
Mass A forklift raises a box 1.2 m and does 7.0 kJ of<br> work on it. What is the mass of the box?
Mamont248 [21]

Answer:

Work and Kinetic Energy

A B

3. A 0.180 kg balls falls 2.5 m. How much work does the force of gravity do on the ball? 4.41 J

4. A forklift raises a box 1.2 m doing 7.0 kJ of work on it. What is the mass of the box? 595.24 kg

5. How much work does the force of gravity do when a 25 N object falls a distance of 3.5 m? 87.5 J

Explanation:

5 0
2 years ago
Other questions:
  • What type of electromagnetic radiation is used in communications devices such as cellular telephones?
    9·1 answer
  • A man jogs at a velocity of 2.5 m/s west for 1,200 s. He then walks at a velocity 1.0 m/s east for 500 s and then stops to rest
    12·1 answer
  • Punishment is used to
    5·1 answer
  • Discuss the merits and demerits of various theories of the formation of galaxies.​
    14·1 answer
  • I GIVE CROWNS!!<br> I need how you worked it out as well please because I don't know how to do it.
    6·1 answer
  • Three dogs (Spot, Fido, and Steinberg) are pulling on a chew toy. The chew toy is experiencing no acceleration. Spot is pulling
    8·1 answer
  • how does the tilt of earth affect the hours of daylight north of the tropical of cancer at the time of year shown?​
    8·1 answer
  • Using your strategy to overcome your obstacle.
    15·2 answers
  • Why do you see something as white, black, or another specific color
    10·2 answers
  • Match the type of boundary with its characteristic.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!