Questions LLC
Login
or
Sign Up
Ask a New Question
Simple Machines
Page 9
Questions (998)
A block and tackle with a velocity of 5 is used to raise a mass of 25kg through a vertical distance of 40cm at a steady rate,if
2 answers
asked by
happiness
564 views
A bucket of weight 72 N is lifted from a well by the wheel and axle system shown below:
If the diameter of the circle of the
2 answers
asked by
Latevi
590 views
A block and a tackle system of 4 pulley is used to raise 150g vertically upward if the efficiency is 80% determine the minimum
2 answers
asked by
Esther
560 views
Could a simple machine such as a lever, a pulley system or a hydraulic jack be considered a heat engine? Explain your answer.
I
2 answers
asked by
Bunny
556 views
A MACHINE HASA VELOCITYRATIO5 IS 80% EFFICIENT. WHAT EFFORT WOULDNEEDED TO LIFT A LOAD OF200N WITH THEAIDOFTHIS MACHINE
2 answers
asked by
GOLD
521 views
I need help with types of levers. How can you tell the difference between first class second class ect. ect.
http://en.wikipedia.
1 answer
asked by
Sam
527 views
What type of simple machine is a doorknob? or is it a compound machine?
2 answers
asked by
Amy
504 views
A worker uses awhell and axle with inner radius of 20cm and outer of 50 cm to lift a 2400N object.
a) What is the mechanical
3 answers
asked by
roger
520 views
A lever has a Mechanical Advantage of 13. How much force would the lever exert if you push with a 200N force?
2 answers
asked by
Emily
507 views
How is a whellbarrow a compound machine
P.S. A compound Machine is a machine made of 2 or more simple machines
2 answers
asked by
Mary
503 views
The velocity ratio of a machine is 6 and it efficiency is 75%.what effort would be needed to lift a load of 300N with the
3 answers
asked by
PAA
501 views
When you have more pulleys does the mechanical advantage and efficiency increase or decrease?
5 answers
asked by
Jordan
486 views
How much rope will be needed to lift a load 48m in a single fixed pulley system if the effort is 63n and why
1 answer
asked by
Kennedy
487 views
can a mechanical advantage of a simple machine be les than 1? explain
3 answers
asked by
ambey
473 views
a 50kg box on a ramp needs to be lifted 3m using a force of 100N. What tpe of pulley system could do the work? What type of
1 answer
asked by
A
485 views
A block of tackle system of pulley consisting of 5 pulleys is used to raise a mass of 25kg through a vertical distance of 40cm
2 answers
asked by
Esther
492 views
A simple machine with a wedge at one end, an inclined plane wrapped around an axle in the middle, and a wheel at the other end
1 answer
asked by
Griffin
483 views
i need to make a gold rube berg simple machine(i think that is what it is called) and i need some ideas and some tips
THANK YOU
4 answers
asked by
anna
467 views
How can you make a lever?
In this activity. You will lift a hardcover book with a lever made from a marker and ruler. You need:
2 answers
asked by
Nan
497 views
Ravi applies the
same force to three different machines. The output force of each of these machines is shown here. List the three
1 answer
asked anonymously
42 views
For a given machine, explain why the MA is usually less than
the IMA.
1 answer
asked anonymously
9 views
A pulley system is operating at only 50% efficiency. How could the efficiency be increased?
1 answer
asked anonymously
110 views
Using an ideal pulley system, calculate the minimum effort that is required to raise the Load of 5kg and the velocity ratio of
1 answer
asked by
Oscar mary destiny
468 views
I'm having trouble with identifying simple machine.
1)A row boat 2)saw 3)an arm flexing 4)a person hiking 5)a person catching 6)a
4 answers
asked by
yuka
461 views
what type of simple machine is a lawn mower?
1 answer
asked by
DuLaney,9
454 views
A wheel with a radius of 20 cm is attached to an axle with a radius of 1cm. An effort force of 100 N on the wheel counters a
1 answer
asked by
Micheal
475 views
In some cases the input force turns the wheel, and the axle exerts the output force, resulting in a mechanical advantage
1 answer
asked by
Melea
458 views
A hydraulic jack is designed so that when the handle is pushed down 1 m, the piston raising the load moves up 0.015 m.
IMA= 66.67
1 answer
asked by
Jacqueline
450 views
Hi, I asked this question earlier, but didn't get any replies. If anybody could help, it would be extremely appreciated!
A 225 kg
1 answer
asked by
Matt
462 views
A worker uses awhell and axle with inner radius of 20cm and outer of 50 cm to lift a 2400N object.
a) What is the mechanical
1 answer
asked by
lulu
461 views
what is a simple machine and i have a project where i have to build a toy that contains at lest three simple machinesand is
3 answers
asked by
taylor
460 views
what is the mechanical advantage of simple machine 78%efficient
1 answer
asked by
Anonymous
449 views
A machine is able to lift a 50-kg mass when a 49-N force is
applied to the machine. What is the mechanical advantage of this
1 answer
asked anonymously
53 views
The handle of a car jack is moved 150 cm in order to lift the
car 5.0 cm. What is the ideal mechanical advantage of this car
1 answer
asked anonymously
46 views
A machine is often designed when the work required to move
an object needs a force larger than a person can exert. Your task is
1 answer
asked anonymously
31 views
A block system of five pulleys has an efficiency of 70%, calculate the effort that will be required to raise a load of 42.00N
3 answers
asked anonymously
26 views
A screw jack whose pitch is 2mm is used to raise 19 motor car of mass 100kg through a height of 20.0cm,the length of the tommy
1 answer
asked anonymously
48 views
As the mechanical advantage of a simple
machine is increased, how does the distance of the input force compare to the distance of
1 answer
asked anonymously
18 views
door knobs in the petals on your bicycles are examples of what simple machine
1 answer
asked anonymously
20 views
door knobs in the petals on your bicycles are examples of what simple machine
14 letters not including spaces
1 answer
asked anonymously
22 views
door knobs and the petals on your bicycles are examples of what simple machine
1 answer
asked anonymously
26 views
A 60N block is pushed up a 2m long ramp. What is the efficiency of the ramp if 30N of force is needed to raise the block 0.5m?
1 answer
asked anonymously
33 views
A rigid bar that is supported at one point
Fulcrum Lever Pulley Wedge Screw Wheel & Axel Inclined Plane Mechanical System
1 answer
asked anonymously
34 views
The pivot point on a lever
Fulcrum Lever Pulley Wedge Screw Wheel & Axel Inclined Plane Mechanical System Efficiency
1 answer
asked anonymously
42 views
The pivot point on a lever
Which one? PICK ONE Fulcrum Lever Pulley Wedge Screw Wheel & Axel Inclined Plane Mechanical System
1 answer
asked anonymously
35 views
A rigid bar that is supported at one point
Which one? PICK ONE Fulcrum Lever Pulley Wedge Screw Wheel & Axel Inclined Plane
1 answer
asked anonymously
33 views
A construction crew must use a lever to lift a boulder. The mechanical advantage of the lever is 6 and the lever applies a force
1 answer
asked by
LanguadeHarts
41 views
Why is Newton’s cradle (Newton’s balls) described as an “almost-ideal” closed system? Explain your reasoning in one or
1 answer
asked by
u dont know me
18 views
A seesaw has a borad that pivots in the middle, meaning the fulcrum is between the effort and the load. What kind of lever is a
1 answer
asked anonymously
87 views
Which example represents a class 2 lever? (1 point)
a screwdriver opening a paint can • a car door being opened and shut •
1 answer
asked anonymously
26 views
Pages
1
2
3
4
5
6
7
8
9
10
Parent Categories (40)
Engineering
Engineering and Machines
Engineering and Mechanics
Engineering and Physics
Force and Motion
Force and Work
Forces and Motion
Machines
Machines and Technology
Mechanical Advantage and Efficiency
Mechanical Engineering
Mechanical Physics
Mechanical Systems
Mechanics
Mechanics or Work and Energy
Physical Science
Physical Science/Mechanics
Physics
Physics - Mechanics
Physics / Mechanical Systems
Physics and Engineering
Physics and Mechanics
Physics Concepts
Physics Education
Physics or Mechanics
Physics or Science
Physics or Technology
Physics/Engineering
Science
Science and Engineering
Science and Mechanics
Science and Physics
Science and Technology
Science or Physics
Science/Physics
Technology
Tools and Materials
Types of Machines
Work and Energy
Work and Force