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
aleksandr82 [10.1K]
3 years ago
11

What do you need to calculate the mechanical advantage of a block and tackle

Physics
2 answers:
Ira Lisetskai [31]3 years ago
7 0
In a block and tackle, some friction in the pulleys will reduce the mechanical advantage of the machine. To include friction in a calculation of the mechanical advantage of a block and tackle, divide the weight of the object being lifted by the weight necessary to lift it.

Hope this helps
Viktor [21]3 years ago
3 0

The answer was "Number of rope segments that support the resistance weight".

You might be interested in
Ideally, rewards should be given immediately and frequently but
snow_lady [41]
The correct answer for the question that is being presented above is this one: "a. only from an instructor or supervisor." Ideally, rewards should be given immediately and frequently but <span>only from an instructor or supervisor to show authority. </span>
3 0
3 years ago
A ball thrown with 50N of force accelerates at 25 m/s2.  What is the mass of the ball?
MrRissso [65]
F=ma
Force is 50N. Acceleration is 25 m/s^2.
50N=m*25 m/s^2
Divide both sides by 25.
mass=2 kg
7 0
3 years ago
Later, while taking your groceries back to the car, you accidentally let go of your cart. It rolls straight down a grassy slope
VladimirAG [237]

Car is moving on the glassy slope with constant speed

Now we know that

a = \frac{dv}{dt}

so acceleration is rate of change in velocity

as we know that velocity is constant here so acceleration is zero

so here

a = 0

now as we know by Newton's II law

F = ma

since a = 0

F = 0

so net force will be ZERO on it during this motion

6 0
3 years ago
The atomic mass of an atom is determined by which of the following?
Flura [38]
The answer is A.number of protons in the nucleus.
3 0
3 years ago
If the model below represents a volcano and its relationship to the layers of the Earth, from which of the Earth's layers does t
just olya [345]
Magma comes from the core
8 0
3 years ago
Other questions:
  • What deep ocean feature forms at subduction zones
    9·1 answer
  • The electromagnetic spectrum is composed of many colors that possess different wavelengths. Which color possesses the shortest?
    7·1 answer
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    9·2 answers
  • A ball is thrown upward from the ground with an initial speed speed of 25 meters/second; at the same instant, a ball is dropped
    8·1 answer
  • Please I need help on this
    15·1 answer
  • If this plastic cup is heated to its melting
    13·1 answer
  • An unbalanced force of 500 N is applied to a 75 kg object. What is the acceleration of the object?
    14·2 answers
  • Which elements will have chemical properties similar to NE (neon)?
    15·1 answer
  • If Styrofoam has a specific heat of 1131 J/kg°C, how much energy would it take to change a 0.5 kg Styrofoam cooler from 15°C to
    9·1 answer
  • HELP PLEASE!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!