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
s344n2d4d5 [400]
3 years ago
11

The purpose of any simple machine is to allow a job to be done with less force than would normally be needed. However, when a st

ring of simple machines are added together to accomplish a task, the overall efficiency of the machine decreases. Write a brief essay explaining why the efficiency of a complex machine decreases as more simple machines are used. Be sure to include a discussion on the Conservation of Energy in your explanation.
Physics
1 answer:
Black_prince [1.1K]3 years ago
6 0
The essay will highlight the fact that for every simple machine, there is always friction involved. As per the law of conservation of energy, the energy input to a system is equivalent to the energy output. Some of this output is in the form of friction, which is not useful. As the moving parts in a machine increase, it becomes more complex and more friction is generated between its parts. Therefore, a complex machine ends up being less efficient.
You might be interested in
URGENT PLEASE HELP ME ASAP
saul85 [17]

Answer:

The correct answer is - Denying the pleasure of an immediate reward so that you can receive a greater reward later.

Explanation:

Delayed gratification is a gratification method or the process that helps in improving self-control and helps in goals that take time to achieve. It is referred to as the ability to stop or prevent oneself from something more rewarding or pleasurable immediately, in order to get something more pleasurable or rewarding later.

For instance, an individual watch tv before a big exam or studying for the exam so can watch tv after getting good grades.

The correct answer is - option D.

7 0
3 years ago
What is the relation betweenUi andR​
cricket20 [7]

I don't understand the question

Explanation:

Please give it clearly

3 0
3 years ago
What is the element with the lowest electronegativity value?
Lerok [7]
<h2>Answer: Francium </h2>

Let's start by explaining that electronegativity is a term coined by Linus Pauling and is determined by the <em>ability of an atom of a certain element to attract electrons when chemically combined with another atom. </em>

So, the more electronegative an element is, the more electrons it will attract.

It should be noted that this value can not be measured directly by experiments, but it can be determined indirectly by means of calculations from other atomic or molecular properties of the element. That is why the scale created by Pauling is an arbitrary scale, where the maximum value of electronegativity is 4, assigned to Fluorine (F) and the <u>lowest is 0.7, assigned to Francium (Fr).</u>

7 0
4 years ago
Which option was changed in the "Waves" lab to see how it would affect wave speed?
gizmo_the_mogwai [7]

Answer:

B. how hard the string was plucked

Explanation:

4 0
4 years ago
Read 2 more answers
A horizontal spring has spring constant k = 360 N/m. First, compress the spring from its uncompressed length (x = 0) to x = 11.0
mixas84 [53]

Here we can say that by energy conservation principle

Elastic potential energy of spring will convert into kinetic energy of the block

so here we will have

\frac{1}{2} kx^2 = \frac{1}{2}mv^2

we also know that

k = 360 N/m

x = 11 cm

m = 1.85 kg

now we will use all in above equation

\frac{1}{2}\times 360\times (0.11)^2 = \frac{1}{2}\times (1.85) v^2

4.356 = 0.925 v^2

v^2 = 4.71

v = 2.17 m/s

so it will move with speed 2.17 m/s after separating from spring

7 0
3 years ago
Read 2 more answers
Other questions:
  • It is important for physicians to be _____ patient use of alternative therapies.
    7·1 answer
  • What advantages does an electromagnet have over a permanent magnet?
    10·1 answer
  • A power plant needs to slow down the fission reactions in its nuclear reactor. In which direction should the uranium-containing
    14·2 answers
  • Magnetic field lines curve out from one pole and return to the same pole. Please select the best answer from the choices provide
    5·1 answer
  • Plz help plzzzzzzzzzzzzz i will give brainliest
    6·1 answer
  • Assume the lens-to-retina distance of the human eye is 2.00 cm. Calculate the power, P, in diopters, of the eye when viewing an
    11·1 answer
  • A 2.0 m length of wire is made by welding the end of a 120 cm long silver wire to the end of an 80 cm long copper wire. Each pie
    13·1 answer
  • The Pangaea theory supports the theory of plate tectonics because _____.
    12·2 answers
  • A roller coaster starts from rest at the top of a drop and accelerates at a rate of 5.0 m/s2 for 2.0 sec. When it
    15·1 answer
  • An electric motor that transforms 1000 J of chemical potential energy into 975 J of kinetic energy and 25 J of wasted heat energ
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!