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
Juliette [100K]
2 years ago
8

Derive that efficiency is the ratio of output and input work.​

Physics
2 answers:
Stels [109]2 years ago
8 0

Answer:

The efficiency of a simple machine is defined as the ratio of useful work done by a machine (output work) to the total work put into the machine (input work). For ideal or perfect machine, work output is equal to the work input.

Explanation:

Hope it Helps!!!

spayn [35]2 years ago
4 0

Answer:

efficiency of a simple machine is defined as the ratio of useful work done by a machine (output work) to the total work put into the machine (input work). For ideal or perfect machine, work output is equal to the work input.

Explanation:

hope it will help you

You might be interested in
What is the mass of a plastic spoon
m_a_m_a [10]
The mass of a plastic spoon
3 0
3 years ago
Read 2 more answers
A ball thrown vertically upward is caught by the thrower after 2.93 s. Find the initial velocity of the ball. The acceleration o
almond37 [142]

Answer:

The initial velocity of the ball is 28.714 m/s

Explanation:

Given;

time of flight of the ball, t = 2.93 s

acceleration due to gravity, g = 9.8 m/s²

initial velocity of the ball, u = ?

The initial velocity of the ball is given by;

v = u + (-g)t

where;

v is the final speed of the ball at the given time, = 0

g is negative because of upward motion

0 = u -gt

u = gt

u = (9.8 x 2.93)

u = 28.714 m/s

Therefore, the initial velocity of the ball is 28.714 m/s

7 0
3 years ago
A micrometer is how many times smaller than a millimeter?
castortr0y [4]
A micrometer is 100 times smaller than a millimeter.
6 0
4 years ago
You illuminate a slit with a width of 70.3 μm with a light of wavelength 719 nm and observe the resulting diffraction pattern on
Zielflug [23.3K]

Answer:

4.3 cm

Explanation:

We are given that

Width,d=70.3\mu m=70.3\times10^{-6} m

1\mu m=10^{-6} m

Wavelength,\lambda=719 nm=719\times 10^{-9} m

1nm=10^{-9} m

r=2.11 m

We have to find the width in cm of the pattern.

The angle for the first minimum m=1

sin\theta_{min}\approx \theta=\frac{\lambda}{d}=\frac{719\times 10^{-9}}{70.3\times 10^{-6}}=0.0102 rad

y=r\theta=2.11\times 0.0102=0.0215 m

The width of the pattern=2y=2\times 0.0215=0.043 m=0.043\times 100=4.3 cm

8 0
3 years ago
Which best describes the process by which ultrasounds images are made?​
otez555 [7]

Answer:

Sonography-A process in which machine generate a high frequency sound waves that bounch back or reflected from the surface creating echos that are then processed into images .

Ultrasound scans are used to detect problems in the liver, heart, kidney, or abdomen.

Explanation:

6 0
4 years ago
Read 2 more answers
Other questions:
  • Alfred wegener said that earths continents are moving which evidence supports this theory
    10·2 answers
  • Please help asap I need this rn
    10·1 answer
  • Sort the properties of metalloids into the correct categories
    14·1 answer
  • Define e constitutional principle of limited government
    11·1 answer
  • Which gas in Earth’s atmosphere forms ozone?
    13·2 answers
  • The acceleration due to gravity at the surface of Planet X is 10 m/s2. What is the acceleration due to gravity at an altitude of
    7·1 answer
  • A pressure antinode in a sound wave is a region of high pressure, while a pressure node is a region of low pressure.
    12·1 answer
  • What does the model show?
    6·1 answer
  • The newton is defined as the:
    7·2 answers
  • a ball is dropped from rest at a height of 45.0 m above the ground. ignore the effects of air resistance. What is the speed of c
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!