A mirror can just reflect light rays with an angle, it can't be parallel. or if light is perpendicular to the surface of mirror, then it will reflect for same path
In short, Your Answer would be Option C
Hope this helps!
Answer:
mass of the meter stick=0.063 kg
or
mass of the meter stick=63.3 g
Explanation:
Given data
m₁=41.0g=0.041kg
r₁=(39.2 - 23)cm
r₂=(49.7 - 39.2)cm
g=9.8 m/s²
To find
m₂(mass of the meter stick)
Solution
The clockwise and counter-clockwise torques must be equal if the meter stick is in rotational equilibrium
![Torque_{cw}=Torque_{cw}\\F_{1}r_{1}=F_{2}r_{2}\\ m_{1}gr_{1}=m_{2}gr_{2}\\(0.041kg)(9.8m/s^{2} )(0.392m-0.23m)=m_{2}(9.8m/s^{2})(0.497m-0.392m)\\0.0651N.m=1.029m_{2}\\m_{2}=0.063 kg\\or\\m_{2}=63.3g](https://tex.z-dn.net/?f=Torque_%7Bcw%7D%3DTorque_%7Bcw%7D%5C%5CF_%7B1%7Dr_%7B1%7D%3DF_%7B2%7Dr_%7B2%7D%5C%5C%20%20m_%7B1%7Dgr_%7B1%7D%3Dm_%7B2%7Dgr_%7B2%7D%5C%5C%280.041kg%29%289.8m%2Fs%5E%7B2%7D%20%29%280.392m-0.23m%29%3Dm_%7B2%7D%289.8m%2Fs%5E%7B2%7D%29%280.497m-0.392m%29%5C%5C0.0651N.m%3D1.029m_%7B2%7D%5C%5Cm_%7B2%7D%3D0.063%20kg%5C%5Cor%5C%5Cm_%7B2%7D%3D63.3g)
Answer:
<em>The crane lifts the crate up to 76 m high</em>
Explanation:
<u>Work Done by a Force</u>
The work done by a force of magnitude F that displaces an object by a distance y is given by
![W=F.y](https://tex.z-dn.net/?f=W%3DF.y)
We know a crane does a work of 9,500 Joule to lift a crate and is using a force of 125 Nw.
The above equation can be solved to know the value of y in terms of the work and the force:
![\displaystyle y=\frac{W}{F}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20y%3D%5Cfrac%7BW%7D%7BF%7D)
Plugging in the given values
![\displaystyle y=\frac{9,500}{125}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20y%3D%5Cfrac%7B9%2C500%7D%7B125%7D)
![y=76\ m](https://tex.z-dn.net/?f=y%3D76%5C%20m)
The crane lifts the crate up to 76 m high
Answer:
saya tak tau bahasa iggris harus Indonesia janga dia diabaikan begitu saja itu
Answer:
I could swear I just answered this question
Centripetal force is the force that keeps the yoyo going in a circle, if the string breaks, the yoyo would would fly off in a direction that is different to the point on the circle.