Answer:
We should not try to park the car because its rest length is greater than the space available.
The car seems to be approximately equal to the friend (L = 3.16 m). Due to this reason he is sure to park.
Explanation:
<u>We should not try to park the car because its rest length is greater than the space available.</u>
<u></u>
The friend is sure about parking because the car appears short in length to him. For this, we will solve Einstein's length contraction formula from theory of relativity:
where,
L = Relative length observed by friend = ?
L₀ = rest length = 6 m
v = relative speed = 85% of speed of light = 0.85c
Therefore,
L = 3.16 m
<u>Hence, the car seems to be approximately equal to the friend. Due to this reason he is sure to park.</u>
Higher the frequency and greater energy
Pressure. pressure=force/area so collisions of helium atoms produce a force on an area of the wall of a container, meaning that there is pressure on the container walls.
A simple arrangement by means of which EMF are compared is known as a voltmeter.
Discussion about Voltmeter :
- A voltmeter is a straightforward device used to compare electromagnetic fields.
- When there is no current flowing through a cell, its terminal voltage equals its electromotive force (emf). The difference in potential between a cell's electrodes is what determines its terminal voltage. Since voltmeters use the cell's current to draw voltage, they are unable to measure a cell's emf.
- Using a voltmeter, one may determine the voltage generated in an electric circuit. Volts are the emf's SI unit (V). Volts are the voltage's SI unit (V). Non-coulomb force, also known as non-electric force operation, defines emf.
Learn more about voltmeter here:
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