Answer:
As the tines of the tuning fork vibrate at their own natural frequency, they created sound waves that impinge upon the opening of the resonance tube. These impinging sound waves produced by the tuning fork force air inside of the resonance tube to vibrate at the same frequency.
Answer:
Projectile motion is the motion of an object thrown (projected) into the air. After the initial force that launches the object, it only experiences the force of gravity. The object is called a projectile, and its path is called its trajectory.
Explanation:
Answer:
B is the answer
Explanation:
When A is divided by 7x, it multiplies to0.81
Answer:
Rate of magnetic field is 15923.668 T/sec
Explanation:
We have given radius of loop conductor r = 2 mm = 0.002 m
Induced emf = 2 volt
As the magnetic field and plane are perpendicular to each other so angle between magnetic field and area is 0°
Cross sectional area of the conductor is equal to 
Induced emf is given by 
