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
forsale [732]
3 years ago
13

an incandescent lightbulb has an efficiency of 2.1% and a power of 60 w. how much light energy does the lighbulb produce in 1 se

cond
Physics
1 answer:
AveGali [126]3 years ago
5 0

Explanation:

Power output of the bulb:

0.021 × 60 W = 1.26 W

Energy produced by the bulb in 1 second:

E = Pt

E = (1.26 W) (1 s)

E = 1.26 J

Round as needed.

You might be interested in
An electric heating element is connected to a 110v circuit and a current of 3.2 a is flowing through the element. How much energ
Kisachek [45]
2.580 Wh.... .........
7 0
3 years ago
Read 2 more answers
If an electron is released at the equator and falls toward earth under the influence of gravity, the magnetic force on the elect
Alborosie
Using Fleming’s left hand rule,

The magnetic force on the electron will be west. Example: If it is dropped above the equator in Africa, the electron will head towards North America.
4 0
3 years ago
3. With a<br> you can measure just about anything.
Degger [83]
MULTIMETER combines the functions of ammeter, voltmeter and ohmmeter as a minimum.
5 0
3 years ago
How much current flows through a 100- ohm device connected to a 1.5- volt battery​
Stolb23 [73]

Answer:

0.015A

Explanation:

I=V/R

=1.5/100

0.015A

Just apply ohm's law

5 0
2 years ago
What would be the best design for an experiment that tests how much water expands when frozen?
galben [10]

B. Purchase a small plastic container and mark 1-ounce increments on the outside to determine volume. Pour 5 ounces of water into the container, and place in the freezer for 8 hours. Compare the frozen or ending volume with the liquid or beginning volume.

<h3>How much water expands when frozen?</h3>

Ice is less denser than the liquid form. Water is the only known non-metallic substance that expands when it freezes because it is the unique property of water. Water density decreases and it expands approximately  about 9% by volume. For calculating the expansion of water, plastic container is the best option. We know that water expands when the water freezes because it is a unique property of water which allows the survival of aquatic organisms.

So we can conclude that option B is the right answer.

Learn more about water here: brainly.com/question/1313076

#SPJ1

5 0
2 years ago
Other questions:
  • If you want to play a tune on wine glasses, you’ll need to adjust the oscillation frequencies by adding water to the glasses. Th
    12·1 answer
  • _____ are formed where bumps from two surfaces come into contact ?
    15·1 answer
  • When you normally drive the freeway between Sacramento and San Francisco at an average speed of 115 km/hr (71 mi/h ), the trip t
    14·1 answer
  • which of the following types of exercise increase lean body mass?. A.) cardiorespiratory fitness. B.) flexibility. C.) muscular
    10·2 answers
  • Two equal-magnitude forces are applied to a door at the doorknob. The first force is applied perpendicular to the door, and the
    5·1 answer
  • After Gru shrinks the moon are the side effects realistic to what would happen if the moon actually shrunk? Explain.​
    9·1 answer
  • Which statement about covalent bonds is true
    12·2 answers
  • An astronaut on Pluto attaches a small brass ball to a 1.00-m length of string and makes a simple pendulum. She times 10 complet
    6·1 answer
  • El movimiento de los cuerpos y la formación de imágenes son ejemplos de esta clase de fenómeno ​
    11·1 answer
  • A house is advertised as having 1580 square feet under roof. What is the area of this house in square meters?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!