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
Bumek [7]
3 years ago
8

Why is the amount of mechanical energy produced less than the amount of electrical energy used?

Physics
2 answers:
Tema [17]3 years ago
6 0
Because the efficiency of the process is less than 100%.
Hoochie [10]3 years ago
5 0
Because some of the energy is wasted and the amount of energy wasted is based on the efficiency of the machine
You might be interested in
A string with a length of 4.00 m is held under a constant tension. The string has a linear mass density of \mu=0.000600~\text{kg
yulyashka [42]

Answer:

T=245.76N

Explanation:

We know that the frequency of the nth harmonic is given by f_n=nf, where f is the fundamental harmonic. Since we have the values of two consecutive frequencies, we can do:

f_{n+1}-f_n=(n+1)f-nf=nf+f-nf=f

Which for our values means (we do not need the value of <em>n</em>, that is, which harmonics are the frequencies given):

f=f_{n+1}-f_n=480Hz-400Hz=80Hz

Now we turn to the formula for the vibration frequency of a string (for the fundamental harmonic):

f=\frac{1}{2L} \sqrt{\frac{T}{\mu}}

So the tension is:

T=\mu(2Lf)^2

Which for our values is:

T=(0.0006kg/m)(2(4m)(80Hz))^2=245.76N

6 0
3 years ago
Study the image of the moving car.
gayaneshka [121]

Answer:

While traveling downhill, the car’s potential is <u>increasing</u> and kinetic energy is <u>decreasing</u>

Explanation:

hope this helps!

6 0
2 years ago
Read 2 more answers
Deadpool is doing a superhero landing from a 21 meter tall building what would his velocity be right before he hits the ground?
Morgarella [4.7K]

Answer:

I think he would be dead poggers

Explanation:

4 0
3 years ago
Which theory of the origin of the moon would be most supported if the moon had an irregular shape, like an asteroid? impact theo
Fiesta28 [93]
<span>Its the impact theory.
It suggests that the moon resulted from the collision of two protoplanets, or embryonic worlds. One of those was the just-forming Earth, and the other was a Mars-size object called Theia. The moon then coalesced from the debris, thus giving it its irregular shape.</span>
3 0
3 years ago
Read 2 more answers
Differences in ocean-surface height can be measured by _____.\
bonufazy [111]
<h3><u>Answer;</u></h3>

Satellite

Differences in ocean-surface height can be measured by<u> Satellite</u>

<h3><u>Explanation;</u></h3>
  • The topography of the ocean or the height of the ocean surface relative to a level of no motion provides the information on tides, and the distribution of heat and mass in the Earths's oceans.
  • <em><u>The ocean topography is measured using satellites altimeter. Satellites use radar altimeters that are specially made to measure the height of the ocean surface.  The satellites measure the height of the ocean surface with an accuracy of 3 cm relative to the center of the earth.</u></em>
  • Satellite altimeter combines precise orbit determination with accurate ranging by a microwave altimeter of ocean distance to the satellite.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Each of three identical 15.0-L gas cylinders contains 7.50 mol of gas at 295 K. Cylinder A contains He, cylinder B contains O2,
    13·1 answer
  • Which property of X-rays allows them to enter our bodies and create pictures of our bones and other internal structures?
    8·1 answer
  • True or Flase The fastest moving traffic on the expressway will be traveling in the right lane
    7·1 answer
  • 1. The maximum running speed (S) in km/hr and the corresponding body mass (m) in kg were
    6·1 answer
  • Holden is trying to determine the velocity of his race car. He went 20 meters east, turned around, and went 40 meters west. He t
    12·1 answer
  • 27.9+13+1.21 rounded to a significant figure<br>​
    15·2 answers
  • The urethra extends from the:
    5·1 answer
  • Two waves have the same amplitude and are traveling through the same medium, but the first wave has a higher frequency. The ener
    6·1 answer
  • PLEASE help its timed..
    5·1 answer
  • True or false question scientists can predict when an earthquake will occur
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!