<em>The sensitivity of a mercury thermometer can be increased by using a smaller mercury bulb, thinner wall and smaller bore. A smaller bulb contains less mercury and hence absorbs heat in shorter time. As a result it can response faster to temperature change.</em>
Answer: 63 m/s
Explanation: If wheel drops vertically, you can use
conservation of energy : Ep = Ek. mgh = ½mv^2 and
solve v = √(2gh ) = √ (2·9.81 m/s²·200 m) = 62.6 m/s.
NOTE: wheel has also horizontal speed which was not mentioned here.
Given :
An object with weight 20 N was lifted to 0.5 meters.
To Find :
How high must you lift a 25 Newton book for it to have the same increase in potential energy as the given book.
Solution :
Since both have same potential energy :
Putting all given values in above equation :
Therefore, book with same potential energy is at a height of 0.4 m.
<h2>
Hey There!</h2><h2>_____________________________________</h2><h2>
Answer:</h2><h2>_____________________________________</h2><h3>DATA:</h3>
Angle of projection = θ(theta) =
Initial Velocity = =
Acceleration due to gravity = g = 9.8 m/s^2
Vertical Velocity = = ?
Horizontal Velocity = = ?
Range of the Shell = R = ?
Maximum Height = H = ?
<h2>_____________________________________</h2><h3>SOLUTION:</h3>
Vertical Velocity is given by,
θ
Horizontal Velocity is given by,
θ
Range is given by,
R = Sin2θ
Horizontal Velocity is given by,
<h2>
_____________________________________</h2><h2>Best Regards,</h2><h2>'Borz'</h2>
Particles in the liquid state of matter are close together, yet free to move around one another