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
SOVA2 [1]
3 years ago
6

You and your housemate have an argument over the cost of the electric bill. You want to turn off the outside porch light before

going to bed each night. Your housemate wishes to keep the light on from 6:00 PM each evening to 6:00 AM the next morning and says that this will not add any significant amount to the electric bill. If the porch light bulb is a 65 W bulb, how much will your housemate's plan contribute to the electric bill each month? Take the number of days in a month as 30 and the average cost of electricity is 17.0¢/kW · h.
Physics
1 answer:
deff fn [24]3 years ago
5 0

Answer:

  Cost = $ 3,995

Explanation:

Let's start by looking for the energy consumed, which is the power over time

               E = P t

The power is 65 W, the time is 12 h each day, in a period of 30 days the time is

            t = 12  30 = 360 h

            E = 65 360

            E = 23,500 W h

We reduce to KW h

            1 kW = 1000 W

            E = 23.5 kW h

Let's use a direct ratio rule (rule of three) to find the cost

           Cost = 23.5  17.0

           Cost = 399.5 c

           Cost = $ 3,995

You might be interested in
What type of friction occurs when you are trying to move an object, but the object isnt moving?
Tasya [4]

the answer is static friction


7 0
4 years ago
In which state of matter are water molecules measured as having the lowest temperature?
natali 33 [55]
Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy. The temperature of a substance is a measure of the average kinetic energy of the particles.
4 0
3 years ago
Read 2 more answers
What is the Ozone layer?
yaroslaw [1]
"<span>a layer in the earth's stratosphere at an altitude of about 6.2 miles (10 km) containing a high concentration of ozone, which absorbs most of the ultraviolet radiation reaching the earth from the sun."

Hope this helps!
</span>
4 0
3 years ago
Read 2 more answers
/
Mumz [18]
No se ha da han dicho nada más de lo dicho y han ido de vuelta y han dicho nada más de que se pueda hacer el favor del niño
4 0
3 years ago
Read 2 more answers
A 97 kg man lying on a surface of negligible friction shoves a 62 g stone away from himself, giving it a speed of 2.6 m/s. What
tangare [24]

Answer:

man will move in opposite direction with speed

v_1 = 1.66 \times 10^{-3} m/s

Explanation:

As we know that man is lying on the friction-less surface

so here net force along the surface is zero

so if we take man + stone as a system then net change in momentum of this system will become zero

so here we have

P_i = P_f

0 = m_1v_1 + m_2v_2

here we have

0 = (97)v_1 + 0.062(2.6)

v_1 = -\frac{0.1612}{97}

v_1 = -1.66 \times 10^{-3} m/s

3 0
3 years ago
Other questions:
  • The energy band gap of GaAs is 1.4 eV. Calculate the optimum wavelength of light for
    9·1 answer
  • A golf ball has a mass of 46 grams, and when struck by a driver reaches a speed of 42 m/s in a time of 0.00050 seconds. what was
    9·1 answer
  • At an amusement park, the wheelie carries passengers in a circular path of radius r = 11.2 m. If the angular speed of the wheeli
    10·1 answer
  • Power=170 watts time=20 seconds
    12·1 answer
  • An object is moving in a straight line with constant acceleration a)its acceleration start increasing at some rate than b)
    6·1 answer
  • Thermal physics vs atomic physics ...which is easier?​
    8·2 answers
  • The speed of a wave is 70 m/s. If the wavelength of the wave is 0.4
    11·2 answers
  • Mark the correct statement: a) Charges flow through a circuit b) voltage is applied across the circuit c) voltage is the ratio o
    11·1 answer
  • If the amplitude of a sound wave is increased by a factor of four,how does the energy carry by the sound wave in each time inter
    11·1 answer
  • A certain CD has a playing time of 74.0 minutes. When the music starts, the CD is rotating at an angular speed of 480 revolution
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!