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Jack has set up a lever underneath a boulder that will destroy the bridge if the lever is pulled. If anyone wants to get to the "rock" they need to cross the bridge.
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Which of three classe of lever is a screw car jack under?
If you wrap an inclined plane around a small circle what you will end up with is a screw jack
What type of lever does not increase force but does increase the speed or distance a load travels?
Class-I lever . . . may or may not do that, depending on how it's set up. Class-II lever . . . never does that. Class-III lever . . . always does that.
What is mechanical advantage of screw Jack?
You divide the pitch of the jack's screw into a length equal to the distance traveled by the end of the Jack's lever around the circumference of a circle having a radius equal to the jack's lever. Elliott
When a little girl jacks up a car how can applying so little force produce sufficient work to raise the car?
Hilmar, repeating your answer several times doesn't make it any more comprehensible. The handle on the hydraulic jack is a lever that gives the kid a mechanical advantage when used to propel a little hydraulic fluid from a reservoir to the movable platform supporting the vehicle. The jack mechanism prevents the hydraulic fluid from returning to the reservoir when the lever is raised for another stroke. Thus, each downstroke pushes more oil out to the platform, and up it goes. An automobile jack is sized to lift autos, but heavier objects need larger jacks or more of them.
What are the components of the lever?
I THINK THE 3 components of a lever is:1st class2nd class3rd class
What does jack set up a lever for in lord f the flies?
To prevent intruder
Which of three classe of lever is a screw car jack under?
If you wrap an inclined plane around a small circle what you will end up with is a screw jack
What is an example an a lever?
Car jack
What type of lever does not increase force but does increase the speed or distance a load travels?
Class-I lever . . . may or may not do that, depending on how it's set up. Class-II lever . . . never does that. Class-III lever . . . always does that.
What is mechanical advantage of screw Jack?
You divide the pitch of the jack's screw into a length equal to the distance traveled by the end of the Jack's lever around the circumference of a circle having a radius equal to the jack's lever. Elliott
What type of simple machine is a jack?
A lever
What type of simple machine is Jack?
A lever
What is the simple machine of tire jack?
lever
How does one use a pallet Jack?
A pallet jack is a fairly simple to use piece of equipment. Depressing the lever on the handle will lower the jack. To raise it again, you simply pump the handle up and down, just as you would a car jack.
Would a bumper jack be a third class lever?
no
How do you set the marginal stop in a manual typewriter?
There should be a margin-set lever that can be slid further in or out to alter the travel of the carriage. The margin-set lever is often located next to the larger carriage release lever.
Where is the tool to lower the spare tire?
Usually stored near the jack, often the jack lever.
