A force of 8 N will be required.
<h3><u>Explanation:</u></h3>
Mechanical advantage is defined as the ratio of output force from a system to the input force into the system. A machine which has the mechanical advantage more than 1 means it requires less force to give more force as output. Similarly, when the mechanical advantage for the machine is less than 1,it means more force is required to give to achieve a less one.
Here in the question, the mechanical advantage of the pulley is 2.
Output force required to pull the sack of potatoes upto kitchen is 16N.
Mechanical advantage = Output force / input force.
Or, 2= 16 / input force.
So input force = 
So a force of 8 N will be required to pull the pulley.
The difference between cytoplasm and cellcytoplasm is jelly like fluid part of the protoplasm
The sugar-phosphate backbone is an important structural component of DNA. It consists of 5-carbon deoxyribose sugars<span> and </span>phosphate<span> groups.
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Answer: Biofilms have great importance for public health because of their role in certain infectious diseases and importance in a variety of device-related infections.
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Explanation:
A) Leaves collect light which is necessary for photoosynthesis.
B) All the nutrients are collected from the roots, but I'm not 100% sure
C) Yes, xylem is used for water and nutrients transportation.
D) Pollen is made in anthers, at least I've been thought like that.
E) Well, I'm not sure about that one but it makes sense
