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
Ulleksa [173]
3 years ago
11

What is the efficiency of a tractor that has a work output of 300j and a work input of 400j

Physics
1 answer:
Sauron [17]3 years ago
5 0
<h3><u>Answer;</u></h3>

= 75 %

<h3><u>Explanation</u>;</h3>

To measure efficiency of a machine, compare the work output to work input.

Efficiency = Work output/ work output × 100 %

                = 300/400 × 100

                = 75 %

You might be interested in
How are Neptune and Uranus allke?
AnnZ [28]

Answer:

The methane gives Neptune the same blue color as Uranus.

Explanation:

4 0
3 years ago
Read 2 more answers
if weight is the force of gravity on an object, then your weight can change if the force of gravity is different on a different
Elena L [17]
Yes, your weight can change if the force of gravity is different on a different planet.

Like on the Moon because acceleration due to gravity is 1/6 that on the Earth, your weight on the Moon would be 1/6 the value on the Earth.
 
But note that you mass remains the same.
8 0
3 years ago
Describe the electron transfers that occur in the formation of calcium fluoride from elemental calcium and elemental fluorine.
boyakko [2]

Answer:

Check explanation

Explanation:

In the formation of calcium fluoride we take calcium and fluorine.

in elemental form calcium exist in solid form and fluorine in gaseous form.

formation of compound takes place to complete their octet, in case of calcium  need to remove two electron and need to add one elecron in fluorine to complete their octet so two electron will ransferred from calcium to two fluorine atom.  

3 0
3 years ago
52. How did people spend Life in the<br>hunting age-​
kondor19780726 [428]

Answer:

what is the hunting age? i've never heard of it

7 0
3 years ago
Read 2 more answers
Why is it important to understand the concept of density ?
N76 [4]
Density applies to many if not all aspects of life.  With density you can explain why ice floats.   You can explain why oxygen is on the earth, and not floating around in space( or being replaced by another gas).  You can also explain why heat rises while cold air sinks.
8 0
2 years ago
Other questions:
  • FORENSIC SCIENCE--
    12·1 answer
  • In a transverse wave that travels through a medium, the molecules of the medium vibrate
    12·1 answer
  • Sheena can row a boat at 2.20 mi/h in still water. She needs to cross a river that is 1.20 mi wide with a current flowing at 1.6
    9·1 answer
  • A crane lifts up two boxes.<br><br> Which free body diagram shows the forces acting on block A?
    12·2 answers
  • Density is calculated by dividing the mass of an object by its volume. 
    10·2 answers
  • A 7382 N piano is to be pushed up a(n) 2.16 m frictionless plank that makes an angle of 22.7 ◦ with the horizontal. Calculate th
    13·1 answer
  • If a hockey player starts from rest and accelerates at a rate of 2.1 m/s², how long does it take him to skate 30 m?
    5·1 answer
  • HELP PLEASE<br> 60 POINTS <br> HAVE A GREAT REST OF YOUR DAY PEOPLE :&gt;
    7·2 answers
  • Study the arrow that is circled in the image.
    15·2 answers
  • Plz help me out in need u to help me
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!