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
serg [7]
3 years ago
5

In the doorknob shown above, when the handle is rotated a distance of 189 millimeters, the spindle is rotated a distance of 27 m

illimeters. What is the mechanical advantage of this doorknob? A. 7 B. 27 C. 189 D. 20
Physics
2 answers:
Alisiya [41]3 years ago
7 0

If my math is right its A) 7

because 189 divided by 27 is 7

Klio2033 [76]3 years ago
5 0

I’m thinking it’s A! Sorry if I’m wrong! :)

You might be interested in
Which of the following is a conductor?<br><br> copper<br> water<br> aluminum<br> all of the above
hjlf

Answer:

D all of the above

Explanation:

electricity moves easily through all of them and none of them prevent the flow of electricity

4 0
3 years ago
Why is the sky blue?
ladessa [460]

The sunlight of all colors passes through air, the blue part causes charged particles to oscillate faster than does the red part. More of the sunlight entering the atmosphere is blue than violet, however, and our eyes are somewhat more sensitive to blue light than to violet light, so the sky appears blue.

5 0
3 years ago
Read 2 more answers
Which country or region is coal-rich and oil-poor?
zimovet [89]
THE ANSWER FOR UR QUESTION IS 

WHICH COUNTRY OR REGION IS COAL RICH AND OIL POOR
ANS:- UNITED STATES IS THE COUNTRY WHICH IS COAL RICH AND OIL POOR

HOPE THIS HELPS!!!

^_^ HAPPY TO HELP U ^_^







5 0
3 years ago
A 400g sample of water absorbs 500j of energy. how did the water temperature change if the specific heat of water is 4.18j/g©. S
Mashutka [201]

In general, the quantity of heat energy, Q, required to raise a mass m kg of a substance with a specific heat capacity of <span>c </span>J/(kg °C), from temperature t1 °C to t2 °C is given by:

<span>Q </span>= <span>mc(t</span><span>2 </span><span>– t</span>1<span>) joules</span>

<span>So:</span>

(t2-t1) =Q / mc

<span>As we know:
Q = 500 J </span>

<span>m = 0.4 kg</span>

<span>c = 4180 J/Kg </span>°c

<span>We can take t1 to be 0</span>°c

t2 - 0 = 500 / ( 0.4 * 4180 )

t2 - 0 = 0.30°c

6 0
3 years ago
Only 5 questions plz answer.
Masja [62]
Question 18: a
question 19: b
question 20: c
6 0
2 years ago
Read 2 more answers
Other questions:
  • D
    10·2 answers
  • Describe and contrast inversion and eversion?
    12·1 answer
  • A bus travels a distance of 120 km with a speed of 40km per hour and returns with a speed of 30km per hour calculate the average
    5·1 answer
  • Teams A and B are in a tug-of-war challenge. Team A wins the challenge.
    5·2 answers
  • A _______ is a rhythmic movement that carries energy through space or matter.
    7·2 answers
  • A basketball is resting on the ground.
    13·1 answer
  • Two identical cars, each traveling at the same velocity, and having the same mass come to a stop
    12·1 answer
  • When there is more speed does that mean there is more or less force?
    10·2 answers
  • NEED HELP FROM SCIENCE GENIUS !! POINTS WILL BE GIVEN AND DO GIVE ME A DECENT ANSWER !!!
    6·2 answers
  • Read the following paragraph from the introduction
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!