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
Ronch [10]
3 years ago
6

If an automobile had a 100%-efficient engine, transferring all of the fuel's energy to work, would the engine be warm to your to

uch? Would its exhaust heat the surrounding air? Would it make any noise? Would it vibrate? Would any of its fuel go unused? Discuss.
Physics
1 answer:
svetlana [45]3 years ago
5 0

Answer:

The engine would be warm to touch, and the exhaust gases would be at ambient temperature. The engine would not vibrate nor make any noise. None of the fuel entering the engine would go unused.

Explanation:

In this ideal engine, none of these events would happen due to the nature of the efficiency.

We can define efficiency as the ratio between the used energy and the potential generable energy in the fuel.

n=W, total/(E, available).

However, in real engines the energy generated in the combustion of the fuel transforms into heat (which heates the exhost gases, and the engine therefore transfering some of this heat to the environment). Also, there are some mechanical energy loss due to vibrations and sound, which are also energy that comes from the fuel combustion.

You might be interested in
When an object is in a gravitational field, it has energy in its __________ __________ energy store.what’s is the word in the mi
lisabon 2012 [21]

Answer:

I don't know if this is right or not but I think its Potential Energy

Explanation:

8 0
3 years ago
Guiana dolphins are one of the few mammals able to detect electric fields. In a test of sensitivity, a dolphin was exposed to th
iren [92.7K]

Answer:

0.05 V/m

Explanation:

V = Potential difference that is possible for the dolphin to detect = 0.5 mV

d = Distance between electrodes = 1 cm

Electric field strength is given by

E=\dfrac{V}{d}

\Rightarrow E=\dfrac{0.5\times 10^{-3}}{1\times 10^{-2}}

\Rightarrow E=0.05\ V/m

The corresponding electric field strength is 0.05 V/m

8 0
3 years ago
You drop a glass on the floor and it shattters chemical or physical change ?
Sati [7]
This describes a physical change. The glass shattering changes its physical shape and appearance only, as it retains its chemical composition.
7 0
2 years ago
Read 2 more answers
Ann successfully jumped over a 25.5 m-wideriver. Assuming that she started and landed at the same level and was airborne for 2.5
dolphi86 [110]

Answer:

Explanation:

t=Time airborne=2.54 s

R= horizontal range= 25.5 m

From the projectile motion equations we know that:

H=\frac{g*t^{2}}{8}

H=\frac{9.8 \frac{m}{s^{2}} *(2.54s)^{2}}{8}

H=7.9 m

7 0
2 years ago
What happens when light waves strike a mirror? question 5 options: most of the light waves are refracted. most of the light wave
muminat

Answer: "Most of the light waves are reflected", might be the correct answer.

Explanation: it might be the correct answer because the light waves spread out from the source in all directions, and upon striking a mirror, are reflected at an angle determined by the angle at which the light arrives. The reflection process inverts each wave back-to-front, which is why a reverse image is observed.

6 0
2 years ago
Read 2 more answers
Other questions:
  • Anna Litical and Noah Formula are experimenting with the effect of mass and net force upon the acceleration of a lab cart. They
    8·1 answer
  • What happens when a electron and a proton get close together?
    15·1 answer
  • If Teresa's daughter is my daughters mother who am I to Teresa?
    9·2 answers
  • A crane raises a crate with a mass of 150 kg to a height of 20 m. Given that
    6·1 answer
  • What is the taste of the resulting mixture?
    15·2 answers
  • Which of the following statements is true? Like charges attract and unlike charges repel each other. Gravitational forces only e
    13·1 answer
  • Which most accurately describes the path that sound​ travels??
    6·1 answer
  • An ideal monatomic gas at temperature T is held in a container. If the gas is compressed isothermally, that is at constant tempe
    8·1 answer
  • How might being too strong actually restrict a joints range of motion
    13·1 answer
  • What is a sound of electronic?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!