Answer:
Sharpening a knife reduces it's height as a wedge thus giving it more efficiency.
Explanation:
Mechanical advantage refers to the degree or quantity to which a force is increased or amplified by using a tool or a machine.
Mechanical Advantage can be calculated as follows:
Lenght of Incline (LI) / Height of Incline (HI)
Assume I have constructed a hedge with an inclination that run 10 meters from point x to point y (which is the back of a truck. Point y to the floor is 5 meters.
If LI = 10m and
HI= 5m
The mechanical advantage is given as 10/5 = 2
The angle of incline is also called the effort distance. From our calculations above, by sacrificing horizontal movement, I reduced the amount of effort it would have cost to lift up that object from ground up - a distance of 5 meters.
Think of a knife as a form of a similar wedge.
The more a knife is sharpening of a knife further reduces its angle of elevation. Thats why it becomes more efficient to use, hence our mechanical advantage.
Cheers
Answer:
R/2
Explanation:
The potential at a distance r is given by :
Where
k is electrostatic constant
q is the charge
The potential (relative to infinity) due to a point charge is V at a distance R from this charge. So,
Put all the values,
<h3>So, the distance at which the potential (relative to infinity) is 2V is R/2.</h3>
Answer:
very small amounts of mass
Explanation:
Nuclear fission is the splitting of large atomic nucleus into smaller nuclei.
Answer:
second
Explanation:
the first let's everything appear red, the send would produce black(-ish) words on paper that's appealing blue
It’s the tires because there the only thing directly moving it