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
bagirrra123 [75]
2 years ago
15

If a heat engine takes in 4565 kJ and gives up 2955 kJ during one cycle, what is the engine’s efficiency?

Physics
1 answer:
vodomira [7]2 years ago
5 0

The engine efficiency is 64.73 %

<u>Explanation:</u>

Given data

To find the engine’s efficiency we have the formula,

Energy input- 4565 KJ

Energy output - 2955KJ

Efficiency= energy output/ energy input ×100%

 =2955/4565

  =0.6473 ×100

η               =64.73 %

The engine efficiency is 64.73 %

You might be interested in
A 25.0 kg object is held 8.50 m above the ground. Calculate its PE
pantera1 [17]

Answer:=mgh

Explanation:

6 0
3 years ago
If someone is moving at a constant speed of 100 km/h and accelerate to 120km /h in 10 s what is the acceleration
Alex Ar [27]

The acceleration should be a gain of 2 km/h per second

5 0
3 years ago
Electromagnetic induction means that moving a magnet through a loop of wire creates an electric current.
MAVERICK [17]
False. An Electromagnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field.
4 0
3 years ago
Read 2 more answers
Compare the signs of ƒ for lenses and mirrors.
STALIN [3.7K]

Answer:

simple

Explanation:

<h3>CONCAVE MIRRORS AND LENSES</h3>

<h3>f= negative</h3>

<h3>CONVEX MIRRORS AND LENSES</h3><h3 /><h3>f= positive</h3>

<h3>PLEASE FOLLOW ME AND MARK IT BRAINLIEST</h3>

3 0
3 years ago
Read 2 more answers
How does the law of conservation of energy apply to machines?
allsm [11]
Energy can be changed from one form to another, but it cannot be created or destroyed. ... This principle is referred to as the first law of thermodynamics or the law of energy conservation. The law applies to all systems both large and small, and, again, it states that energy cannot be created or destroyed.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Juliette is driving her car when she sees a cat run across the road. If she is able to stop the car over a distance of 0.025km i
    9·1 answer
  • (1) Arectangularmetal block with mass 18 kg has
    12·1 answer
  • Laboratory experiments here on Earth have determined that each element in the periodic table emits photons only at certain wavel
    13·1 answer
  • A 1.00-kmkm length of power line carries a total charge of 230 mCmC distributed uniformly over its length. Find the magnitude of
    13·1 answer
  • The observation location A is located at &lt; 0.112, 0.247, 0 &gt; m. The conventional current running through the wire is 7.5 a
    15·1 answer
  • Which of the following was the main goal of the Iroquois Confederacy?
    7·1 answer
  • A cube of wood 15.0 cm on each side is tied to the bottom of a tank filled with water to a depth of 50 cm. The tension in the st
    14·1 answer
  • A 100. N block sits on a rough horizontal floor. The coefficient of sliding friction between the block and the floor is 0.250. A
    9·1 answer
  • We calculated the speed of visible light through four substances. What is different about the substances? Lesson: 4.10 Substance
    14·1 answer
  • True or FalseIf an object is submerged in water, on earth, at a depth of 3km, the Pressure on the object is2.94 x 10^7 Pa
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!