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
777dan777 [17]
3 years ago
11

Which of the following devices is a simple machine?

Engineering
2 answers:
rodikova [14]3 years ago
8 0

Answer:

The answer is B. a pulley

Explanation:

I hope I answered your question:)

Pie3 years ago
5 0

Answer:

A PULLY

Explanation:

HAD THIS ONE THAT IS THE CORRECT ANWSER

You might be interested in
If the rotational speed of a pump motor is reduced by 35%, what is the effect on the pump performance in terms of capacity, head
FinnZ [79.3K]

Answer:

- the capacity of the pump reduces by 35%.

- the head gets reduced by 57%.

the power consumption by the pump is reduced by 72%

Explanation:

the pump capacity is related to the speed as speed is reduces by 35%

so new speed is (100 - 35) = 65% of orginal speed

speed Q ∝ N ⇒ Q1/Q2 = N1/N2

Q2 = (N2/N1)Q1    

Q2 = (65/100)Q1

which means that the capacity of the pump is also reduces by 35%.

the head in a pump is related by

H ∝ N² ⇒ H1/H2 = N1²/N2²

H2 = (N2N1)²H1

H2 = (65/100)²H1 = 0.4225H1

so the head gets reduced by 1 - 0.4225 = 0.5775 which is 57%.

Now The power requirement of a pump is related as

P ∝ N³ ⇒ P1/P2 = N1³/N2³

P2 = (N2/N1)³P1

H2 = (65/100)²P1 = 0.274P1

So the reduction in power is 1 - 0.274 = 0.725 which is 72%

Therefore for a reduction of 35% of speed there is a reduction of 72% of the power consumption by the pump.  

8 0
3 years ago
A mass of 5 kg of saturated water vapor at 100 kPa is heated at constant pressure until the temperature reaches 200°C.
Alex73 [517]

Answer: you can watch a video on how to solve this question on you tube

6 0
3 years ago
A compound sliding miter saw can be used to make
Sunny_sXe [5.5K]

Answer:

D

Explanation:

3 0
2 years ago
Consider the following list. list = {24, 20, 10, 75, 70, 18, 60, 35} Suppose that list is sorted using the insertion sort algori
Greeley [361]

Answer:

Option B

10,20,24,75,70,18,60,35

Explanation:

The first, second and third iteration of the loop will be as follows

insertion sort iteration 1: 20,24,10,75,70,18,60,35

insertion sort iteration 2:10,20,24,75,70,18,60,35

insertion sort iteration 3: 10,20,24,75,70,18,60,35

8 0
3 years ago
In python/Spyder
lianna [129]

Answer:

Answer to both the parts A and B are provided in the word document attached.

Explanation:

The explanation of the programs is provided in the attached file along with the screenshot of ATM application output.

Download docx
8 0
3 years ago
Other questions:
  • How do i get my camera to work in the app, i just got a new phone and it won’t pull up the camera
    14·1 answer
  • A baseband signal with a bandwidth of 100 kHz and an amplitude range of±1 V is to be transmitted through a channel which is cons
    8·2 answers
  • Someone please help me with this I’m stuck on it ?!i don’t have a lot of time
    12·1 answer
  • Which type of load is not resisted by a pinned joint? A) Moment B) Shear C) Axial D) Compression
    7·1 answer
  • Water at 20◦C is pumped through 1000 ft of 0.425 ft diameter pipe at a volumetric flowrate of 1 ft3/s through a cast iron pipe t
    14·1 answer
  • PLEASE HELP ME!!!!!! 100 POINTS FOR HELPFUL ANSWERS + BRAINLIEST!!!!!
    14·2 answers
  • What does abbreviation vom stand for
    14·2 answers
  • Identify renewable energy sources you will propose. Explain the key elements to your solution and the basic technical principles
    5·1 answer
  • 50 points
    7·1 answer
  • In an ungrounded electrical systems with conductors installed in grounded metal raceways and enclosures, what is the voltage fro
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!