The one word that fills all blanks is nothing.
1. Nothing is sweeter than honey.
2. Nothing is hotter than sun.
3. A king wants nothing.
4. A beggar has nothing.
5. If you eat nothing, you will die.
Technically, displacement is the "shortest" distance between any two points. If you say displacement is greater than distance, you will contradict the above statement. Displacement is always less than or equal to distance. Note that distance is a scalar whereas displacement is a vector. :)
The answer would be Conduction
Answer:
h1/h2 =
Explanation:
Using two rolls of tissue paper : One roll dropped normally while the other drops as some holds onto a sheet of the toilet paper ( I.e. the tissue paper drops rotating about its axis )
<u>Determine the ratio of heights h1/h2</u>
mass of tissues = same
radius of tissues = same
h1 = height of tissue 1
h2 = height of tissue 2
<em>For the first tissue ( Tissue that dropped manually ) </em>
potential energy = kinetic energy
mgh = 1/2 mv^2
therefore the final velocity ( v^2 ) = 2gH ----- ( 1 )
<em>second tissue ( Tissue that dropped while rotating ) </em>
gh = ( 3 + ) ------ ( 2 )
To determine the ratio of heights we will equate equations 1 and 2
hence :
gh = ( 3 + )
∴ h1/h2 =
Answer:
True
Explanation:
If we swing a bucket of water fast enough in a vertical circle the water does not spill out even at the top-most position of the bucket. This happens because the centrifugal force acting away from the center in a circular motion neutralizes or overcomes the gravitational force on the water particles.
<u>Centrifugal force is mathematically related as:</u>
where:
m = mass of the revolving body
r = radius of revolution
angular velocity in radians per second
This force F acts in radially outward direction.