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
Greeley [361]
3 years ago
6

If a 160W light bulb consumes 1000J of electrical energy in a given time, then in the same time interval, how much energy will a

40W light bulb consume?
​
Physics
2 answers:
NNADVOKAT [17]3 years ago
7 0
160w/4 = 40w
1000J/ 4= 250J
a 40w light bulb will consume 250J
kodGreya [7K]3 years ago
7 0

Answer:250J

Explanation:

160*t=1000

40* 1000/160= 250

You might be interested in
Suppose you lived in the crater Copernicus on the side of the Moon facing Earth.
Wittaler [7]

Answer and Explanation:

In case, I lived in the Crater Copernicus on Moon's side facing the Earth then:

  • On moon, as it orbits the Earth, it takes 29 and a half days to complete one cycle of sunrise and sunset. So, the would rise once in 29 and a half day.
  • The moon orbits the Earth in such a way that the its same side faces the Earth always which concludes that the Earth is overhead every time resulting in no Earth rise or Earth set on Moon.
  • Due to the thin atmosphere, it can't impart any specific color to the sky on the moon as a result of which the moon's sky is always black and hence, stars can be seen every time.

5 0
4 years ago
Write any two important of gravitational force?
eimsori [14]

Answer:

Explanation:

Gravitational force is important because:

1.  because of the gravitational force of the earth, the atmosphere is present around its surface, which is crucial for sustainability of life on earth

2. we are able to perform motion due to the force of gravity

5 0
3 years ago
A Venturi tube may be used as a fluid flowmeter. Suppose the device is used at a service station to measure the flow rate of gas
leonid [27]

Answer

given,

flow rate = p = 660 kg/m³

outer radius = 2.8 cm

P₁ - P₂ = 1.20 k Pa

inlet radius = 1.40 cm

using continuity equation

 A₁ v₁ = A₂ v₂

 π r₁² v₁ = π r₁² v₂

 v_1= \dfrac{r_1^2}{r_2^2} v_2

 v_1= \dfrac{1.4^2}{2.8^2} v_2

 v_1= 0.25 v_2

Applying Bernoulli's equation

 \Delta P = \dfrac{1}{2}\rho (v_2^2-v_1^2)

 \Delta P = \dfrac{1}{2}\rho (v_2^2-(0.25 v_2)^2)

 \Delta P = \dfrac{1}{2}\rho v_2^2 (1 - 0.0625)

 v_2=\sqrt{\dfrac{2\Delta P}{\rho(1 - 0.0625)}}

 v_2=\sqrt{\dfrac{2\times 1200}{660 \times(1 - 0.0625)}}

       v₂ = 1.97 m/s

b) fluid flow rate

Q = A₂ V₂

Q = π (0.014)²  x 1.97

Q = 1.21 x 10⁻³ m³/s

5 0
4 years ago
Two infinite plane sheets with uniform surface charge densities are placed parallel to each other with separation d. in the regi
kupik [55]

Answer:Uniform between the plates

Explanation:

Electric Field due to infinite sheet with uniform charge is given by

E=\dfrac{\sigma }{\epsilon _0}

Where \sigma=charge density

\epsilon _0=Space Permittivity

From the formula we can see that Electric field is independent of distance of the particle, so it is uniform between the plates .

3 0
3 years ago
What is called the process of finding exact quantity of a substance?​
Tema [17]

Answer:

Measurement is called the process of finding exact quantity of a substances.

7 0
2 years ago
Other questions:
  • Choose all statements that are true about a GFCI outlet.
    9·1 answer
  • Zad. 1. Jaką pracę wykona dźwig, który pracował przez 1,5 h napędzany silnikiem o mocy 200 kW?
    5·1 answer
  • Your distance and direction from a reference point will define your
    6·1 answer
  • Why is meiosis a key step in sexual reproduction? Select all that apply. creates gametes with two sets of chromosomes creates th
    15·1 answer
  • A hydraulic lift is to be used to lift a 1900-kg weight by putting a weight of 25 kg on a piston with a diameter of 10 cm. Deter
    9·1 answer
  • A mass spectrometer is used to examine the isotopes of uranium. Ions in the beam emerge from the velocity selector at a speed of
    11·1 answer
  • Prior to the music CD, stereo systems had a phonographic turntable on which vinyl disk recordings were played. A particular phon
    15·1 answer
  • A meterstick is initially standing vertically on the floor. If the meterstick falls over, with what angular velocity will it hit
    12·1 answer
  • 1. What average force is exerted on a 25 g egg by a bed sheet if the egg hits the sheet at 4 m/s and takes
    10·1 answer
  • the temperature of a bowl of hot soup goes down after the soup is poured into a bowl. whats happening to the motion of the parti
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!