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
EleoNora [17]
2 years ago
10

How much money would be saved by turning off one 100.0-W lightbulb 3.0 h/day for 365 days if the

Physics
1 answer:
Pavlova-9 [17]2 years ago
3 0

Answer:

the money that would be saved is $13.14.

Explanation:

Given;

power consumed by the light bulb, P = 100 W = 0.1 kW

time of running the bulb, t = 3 hours for 365 days = 1,095 hours

cost rate of power consumption, C = $0.12 per kWh

Energy consumed by the light bulb for the given days;

E = Pt

E = 0.1 kW  x 1,095 hr

E = 109.5 kWh

Cost of energy consumed = 109.5 kWh   x   $0.12 / kWh

                                            = $13.14

Therefore, the money that would be saved is $13.14.

You might be interested in
un bus sale de florencia hacia el municipio de san vicente del caguan con una velocidad de 30km/h. 2 horas mas tarde sale otro b
goldenfox [79]
Recuerda que distancia=velocidad x tiempo (d=vt). vamos a llamar d _{1} a la distancia que reccore el primer bus, y d _{2} la distancia que recoore el segundo. Los se econtraran cuando la ditancia recorrida por cada bus sea la misma, es decir d _{1} =d _{2}.
Ahora sabemos que la velocidad del primer bus es 30 km/h y su tiempo es t; en cuanto al segundo bus, su velocidad es 45 km/h y como sale 2 horas mas tarde su tiempo será t-2. Ahora podemos reemplazar los valores en nuestra ecuación de de distanica para hallar el tiempo:
30t=45(t-2)
30t=45t-90
30t-45t=-90
-15t=-90
t= \frac{-90}{-15}
t=6
Los buses se encontraran en 6 horas, 4 horas después de haber salido el segundo bus.

 Ahora para hallar la distancia a la que los buses estaran de <span>san vicente del caguan solo necesitaremos reemplazar la el tiempo en nuestra equación de distancia para el primer bus:
</span>d _{1} =(30)(6)
d _{1} =180
<span>En el punto de encuentro los buses estarán a 180 km de San Vicente del Caguan.
</span>
7 0
2 years ago
Which energy conversion takes place when a solar cell is used to light a street lamp?
professor190 [17]

Answer:

SOLAR TO LIGHT ENERGY

Explanation:

4 0
3 years ago
Read 2 more answers
Which of the following correctly summarizes the path of olfaction?
tatiyna

Hello!

The answer to your questions is C.

Chemicals in the air- olfactory epithelium- olfactory receptors- cilia-olfactory bulb- brain

~Hope this Helps!~

7 0
2 years ago
What is the change in internal energy if 20 J of heat is released from a system and the system does 50 J of work on the surround
siniylev [52]
Answer is A.

Both energy changes describe energy be lost from the system (in different forms - as heat or as work). The negative sign indicates loss.
7 0
3 years ago
Read 2 more answers
What 3 things can you learn about energy in a roller coaster?
Alika [10]

<u>Answer:</u>

The following are the things we can learn about energy in roller coaster.

  • All roller coasters work using the principle of gravitational energy.
  • All roller coaster utilise the Potential energy.
  • Roller coasters convert the potential energy into kinetic energy.
  • Friction is reduced in roller coasters as it decreases the speed of roller  coaster.

Roller coasters do not have engines whereas Gravity pulls them and potential energy gets converted into kinetic energy providing its motion. Due to the friction and air resistance, the energy gets reduced as the ride proceeds.

4 0
3 years ago
Other questions:
  • By what factor does the sound intensity increase if the sound intensity level increases from 60 db to 61 db?
    6·1 answer
  • A bicyclist notes that the pedal sprocket has a radius of rp = 11 cm while the wheel sprocket has a radius of rw = 4.5 cm. The t
    11·1 answer
  • A parachutist falls 50.0 m without friction. When the parachute opens, he slows down at a rate of 61 m/s^2. If he reaches the gr
    13·1 answer
  • An object is given an initial velocity. What will happen to the object if no other forces act on it?
    15·1 answer
  • The length and width of a rectangular room are measured to be 3.92 ± 0.0035 m and 3.15 ± 0.0055 m. In this problem you can appro
    7·1 answer
  • What is the source of geothermal energy? User: What is the source of geothermal energy?
    9·2 answers
  • Two window washers, Bob and Joe, are on a 3.00 m long, 395 N scaffold supported by two cables attached to its ends. Bob weighs 8
    6·1 answer
  • What is the net magnetic flux through any closed surface?
    7·1 answer
  • A star is moving towards the earth with a speed at 90% the speed of light. It emits light, which moves away from the star at the
    6·1 answer
  • Why do some quasars have red shifts greater than 1?.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!