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2 years ago

When does a wheel and axle have a mechanical advantage greater than one ?

1 answer:

4 0

Great question!

 mechanical advantage is the factor of which a machine multiplies the force put into it. For example, if a simple machine has a mechanical advantage of 3 it means that it made the work you did 3 times easier or you only had to put in 1/3 the force you would have if you didn’t have the simple machine.

To calculate the mechanical advantage of a wheel and axle you must divide the radius of the wheel by the radius of the axle.Therefore larger wheels means that the speed of the wheels is faster than the speed of the axle and for each rotation the axle makes the wheels are making multiple rotations. A mechanical advantage of 5 means that the wheels are moving 5 times faster than the axle.

F = MA= radius of wheel/radius of axle, this is 1 when the radius of both the wheel and axle are the same,and greater than one when the radius of the axle is less than the radius of the wheel.

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Answer:

Four abiotic forms of nitrogen cycle and its chemical formula

Ammonium – $NH^{4+}$

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Nitrite – $NO^2$

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Explanation:

Ammonium: In the nitrogen cycle ammonium is starting point that is present in soil and are converted to various forms by different process.

Ammonia: In the process of nitrogen fixation, the bacteria having nitrogenase enzymes reacts with the nitrogen as well as hydrogen and produces the ammonia, which is further converted to organic compounds.

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Nitrate: Again the Nitrite is converted into Nitrate by the nitrobacter. During the process of assimilation ammonium and nitrate are absorbed by the plants.

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3 years ago

Phytoplankton would most likely be found _______.

Alex

Hey there!

 Phytoplankton would most likely be found _______.

Answer: C. in the photic zone

Hope this helps
Have a great day (:

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3 years ago

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The sequence of nitrogenous bases in DNA varias widely. The sequence of the bases in DNA is most important for which of the foll

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Answer:

The sequence of the bases in DNA is most important because it provides the instructions for the traits of an organism.

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It stores all the information that helps in growth, development and different characteristics developments.

So, the 'sequence of DNA bases' is important to be transferred during the reproduction that transfers the characters from parents to children.

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