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
IgorC [24]
4 years ago
12

The input work done on a machine is 9.63 × 103 joules, and the output work is 3.0 × 103 joules. What is the percentage efficienc

y of the machine?
Physics
2 answers:
notsponge [240]4 years ago
5 0
Input work = 9.63×10³ J.
Output work = 3.0×10³ J

By definition,
Efficiency = (Output work)/(Input work)
                 = (3.0×10³)/(9.63×10³)
                 = 0.31 = 31%

Answer:  31%
Elanso [62]4 years ago
3 0

Answer: The percentage efficiency of the machine is 31.15 %.

Explanation:

Input work done = 9.63\times 10^3 joules

Output work done = 3.0\times 10^3 joules

The efficiency of the machine = \frac{W_{Out}}{W_{In}}\times 100

efficiency \%=\frac{3.0\times 10^3 joules}{9.63\times 10^3 joules}\times 100=31.15\%

The percentage efficiency of the machine is 31.15 %.

You might be interested in
To understand the photoelectric effect physiciests should view light as having what type of properties?
fenix001 [56]

Answer:

Particle

Explanation:

To understand photoelectric effect the physicists has to view light as a particle and not wave. The wave nature of the light could not explain the phenomenon of photoelectric effect.

Photoelectric effect is emission of electrons from a material when electromagnetic radiation(Light) is incident on it. These emitted electrons are called photoelectrons.

The explain this effect Einstein proposed that beam of light is can not be a wave propagating through space, but a swarm of discrete energy packets, called as photons.

5 0
3 years ago
True or false: convection is the term used to describe how molecules move within a fluid such as a liquid or gas.
WINSTONCH [101]
it is true
about the rerms2
5 0
4 years ago
Select the correct answer.
Serhud [2]

Answer:

b hope this helps

Explanation:

5 0
3 years ago
Read 2 more answers
Hey i need some help, what are some facts about smoking prices (its for a project)
VashaNatasha [74]

Answer:

According to the National Cancer Institute, the average cost of a pack of cigarettes is $6.28, which means a pack-a-day habit sets you back $188 per month or $2,292 per year. 1  Ten years of smoking comes with a $22,920 price tag

Explanation:

I hope this helps

8 0
3 years ago
Which of the following pairs of terms directly relates to the actual brightness of a star?
Aloiza [94]

Answer:

D. absolute magnitude and apparent magnitude

7 0
3 years ago
Read 2 more answers
Other questions:
  • The rate at which light energy is radiated from a source is measured in which of the following units?
    9·1 answer
  • All are examples of speed except ______
    10·1 answer
  • Which statement best describes the relationship between temperature and thermal energy?
    9·2 answers
  • solution g A square loop is halfway into a magnetic field that is perpendicular to the plane of the loop. The loop mass is 10 g
    11·1 answer
  • The sun is 150,000,000 km from earth; its diameter is 1,400,000 km. A student uses a 5.2-cm-diameter lens with f = 10 cm to cast
    11·1 answer
  • After most of the iron in the ocean was trapped in banded iron formations, ________ began dispersing into the atmosphere.
    5·2 answers
  • Aplane monochromatic electromagnetic wave with wavelength λ = 2.2 cm, propagates through a vacuum. its magnetic field is describ
    10·1 answer
  • Summarize the procedures you perform before, during, and after a lab investigation.
    13·2 answers
  • A man is holding a 5kg weight ball. What is the weight of the ball?
    5·1 answer
  • What is the bulk modulus of oxygen if 39.9 g of oxygen occupies 27.9 l and the speed of sound in the oxygen is 342 m/s?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!