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
4vir4ik [10]
3 years ago
7

Identify the varibles in the equation for determining the ideal mechanical advantage of a lever

Biology
1 answer:
Alecsey [184]3 years ago
3 0

In the case of a lever, the ideal mechanical advantage, or IMA, is the ratio of the length of the effort arm to the length of the load arm, or IMA = Le / Lr. The effort arm measures the distance from the force applied to the fulcrum, and the load arm measures the distance from the weight, or output force, to the fulcrum.

In the case of a wheel and axle, ideal mechanical advantage is the ratio of the radius of the wheel, R, to the radius of the axle, r. In short, IMA = R/r.

In the case of a pulley system, the ideal mechanical advantage is equal to the number of support strings, N. IMA = N. Alternatively, ideal mechanical advantage is equal to two times the number of movable pulleys.

In the case of an inclined plane, the ideal mechanical advantage is the ratio of the length traveled up the inclined plane, L, to the height difference, h. IMA = L/h.

In the case of a wedge, the ideal mechanical advantage is the ratio of the depth of penetration, L, to the length of the separation of wedged surfaces, t. IMA = L/t.

In the case of a screw, the mechanical advantage is the ratio of the circumference of the screw to the distance traveled after each revolution. In other words, IMA = 2*pi*L / P, where L is the radius of the screw and P is the distance traveled after each revolution.

The actual benefits of a simple machine when compared to its ideal mechanical advantage are reduced due to energy loss caused by friction. The efficiency measures how close a simple machine is to its ideal mechanical advantage. Efficiency is the ratio of the work supplied to the work put into the machine.

You might be interested in
Plz help i will report if it is wrong
Ostrovityanka [42]

Answer:

Your answer for this is D

6 0
3 years ago
Read 2 more answers
Which applies to an earthworm but not to a hydra?
kow [346]
I think the hydra lacks the specialized cells for touch and chemical detection. On the other hand earthworms have touch, light, vibration and chemical receptors along the entire body surface. Both of them are invertebrates (those animals without a backbone), they include insects, worms, jelly fish, spiders among other animals. 
3 0
3 years ago
Species have changed over time is a statement of which?
abruzzese [7]
The answer is
B) Evolution
7 0
3 years ago
2 Explain why fossil fuels contain large amounts of carbon compounds.
Korvikt [17]

Fossil fuels release carbon dioxide gas when they burn which adds to the greenhouse effect and increases global warming. Of the three fossil fuels, for a given amount of energy released, coal produces the most carbon dioxide and natural gas produces the least.

Did this help?

4 0
2 years ago
Flavelle_25 (at symbol) esusdstudents (dot) Org what is 1+1
docker41 [41]

Answer:

What is this?

Explanation:

Well Ik what it is, but what happens when I look it up??

???

8 0
3 years ago
Other questions:
  • What is the structural unit of compact bone ?
    14·2 answers
  • What finally settled the presidential election of 1876?
    14·2 answers
  • At what molarity is the sucrose solution isotonic to the cells? (solve for x, when y = 0)
    5·1 answer
  • What is the complementary strand of dna for a strand with these nitrogenous bases of aggtccg?
    11·1 answer
  • To use amino acids for energy, the nitrogen must first be removed from the amino acid. This process is called __________.
    6·1 answer
  • Much of the autonomic innervation of the gastrointestinal system is parasympathetic. You would expect the preganglioninc neurons
    7·1 answer
  • Besides turning enzymes on or off, what other means does a cell use to
    13·1 answer
  • Who developed the hypothesis that cells only come from other cells?
    8·1 answer
  • Which is an organic compound found in most cells?
    15·1 answer
  • Diffusion is:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!