Answer:
<u><em>The plank moves 0.2m from it's original position</em></u>
Explanation:
we can do this question from the constraints that ,
- the wheel and the axle have the same angular speed or velocity
- the speed of the plank is equal to the speed of the axle at the topmost point .
thus ,
<em>since the wheel is pure rolling or not slipping,</em>
<em>⇒
</em>
where
<em>
- speed of the wheel</em>
<em>
- angular speed of the wheel</em>
<em>
- radius of the wheel</em>
<em>since the wheel traverses 1 m let's say in time '
' ,</em>
<em>
</em>
∴
⇒
the speed at the topmost point of the axle is :
⇒
this is the speed of the plank too.
thus the distance covered by plank in time '' is ,
⇒
<u>Answer</u>
a. tension (associated with normal faults)
c. diagonal
<u>Explanation</u>
A pull of spring or of string on both ends of an object is called tension. So for the question one, the answer is <em> tension (associated with normal faults)</em>
There are three types of faults. Faults are produced by stress or strain by moving plates. These faults are: normal faults, reverse faults and transcurrent or Strike-slip. Strike-slip faults can also be called transform fault. The answer to the second question is <em>c. diagonal.</em>
The high temperature of the heated air inside the balloon causes the air particles to spread out. This leads to a lower density compared to colder air surrounding the balloon.
Therefore the low density causes the balloon to rise up.
Answer:
A) A humidity level of 90 percent is too high.
Explanation:
A humidity level of 90% is too high . It reflects real or possible situation .
Atmospheric temperature between 20 - 30 degree makes comfortable weather. 70 or 80 or 90 degree atmospheric temperature is impossible to achieve on the earth in normal case. The maximum temperature upto which
atmospheric temperature has gone is 55 degree .
So all the other statements appear to be false.
