Answer:
Option A is correct - While a guitar string is vibrating, you gently touch the midpoint of the string to ensure that the string does not vibrate at that point. The lowest-frequency standing wave that could be present on the string vibrates at twice the fundamental frequency.
Explanation:
Before touching the midpoint of the string, the string vibrates with one loop.
Fundamental frequency, f1 = v/(2*L)
Now, when the midpoint of the guitar string was touched, the string vibrates with two loops.
Hence, f2 = 2*v/(2*L)
f2 = 2*f1
Therefore, compared to the fundamental frequency the frequency would be double.
Option A is correct - While a guitar string is vibrating, you gently touch the midpoint of the string to ensure that the string does not vibrate at that point. The lowest-frequency standing wave that could be present on the string vibrates at twice the fundamental frequency.
Distance/ time = 100/5 = 20 km per hour
The average speed at 5hrs is 20 km per hour.
Answer:
Option C
Explanation:
Revolution: When an object moves around another object it is called revolution.
Rotation: When an object spins around its axis it's called rotation
Answer:
Temperature of the object
Explanation:
According to kinetic theorem of gases, the temperature of a gas is a measure of the of the average kinetic energy of the gas particle.
A particle can either exist as solid, liquid or gas.
For solid, the particles are fixed as they rotates and vibrate about a mean position.
The particle of an object is a solid particle.
In accordance to kinetic theorem, the temperature of an object related to the average kinetic energy of the particles in the object.\
Temperature: This can be defined as the degree of hotness or coldness of an object.
Potential energy behind dams
