Answer:
The free end of the blade has a tangential velocity of about 88.19 m/s
Explanation:
The angular velocity of the blades is ![2 \pi /5.7\,\,rad/sec](https://tex.z-dn.net/?f=2%20%5Cpi%20%2F5.7%5C%2C%5C%2Crad%2Fsec)
since the blades are 80 m long, then the tangential velocity of the free end of the blade is:
![v_{tan} \approx 88.19\,\,m/s](https://tex.z-dn.net/?f=v_%7Btan%7D%20%5Capprox%2088.19%5C%2C%5C%2Cm%2Fs)
Answer:
the mark of the broken end is 2.6 cm so, we use the scale from the next full mark i.e. 3cm
Explanation:
<em>we </em><em>now </em><em>measure</em><em> </em><em>the </em><em>length</em><em> </em><em>of </em><em>the </em><em>pencil</em><em> </em><em>by </em><em>keeping </em><em>the </em><em>3</em><em> </em><em>c</em><em>m</em><em> </em><em>mark </em><em>of </em><em>the </em><em>scale</em><em> </em><em>at </em><em>it's</em><em> </em><em>left </em><em>end.</em>
<em>The </em><em>3</em><em> </em><em>cm </em><em>value </em><em>is </em><em>then </em><em>subtracted</em><em> </em><em>from </em><em>the </em><em>scale</em><em> </em><em>reading</em><em> </em><em>at </em><em>the </em><em>right</em><em> </em><em>side </em><em>end </em><em>of </em><em>the </em><em>pencil</em><em> </em><em>to </em><em>obtain </em><em>the </em><em>correct</em><em> </em><em>length</em><em> </em><em>of </em><em>the </em><em>pencil.</em><em> </em><em>✏️</em>
<em>(</em><em>i </em><em>i </em><em>)</em><em> </em>place the scale in the contact with object along it's length
(2) Your eyes must be exactly in front of the point where the measurements to be taken.
Hope_it_helps_mga_ka_joiners_mwehehe
The simplest way to do this is to set up equivalent fractions, like this-
![\frac{1}{2.2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2.2%7D%20)
=
![\frac{40}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B40%7D%7Bx%7D%20)
Solve for x by using cross multiplication.
40*2.2= 88
1*x=88
x=88
Therefore, the boy weighs 88lbs.
Every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. Therefore, there must be the same number of atoms of each element on each side of a chemical equation.
Answer:
yes it does exert a force, it pushes it up
Explanation:
this is called normal force
if it didn't exert a force the book would keep going down
according to newton every force has an equal amd opposite reaction
so the book exerts a force on the table and vice versa
hope this helped