Ultrasonic waves cannot be heard by humans. They have frequencies higher than 20,000 Hz, beyond the range of human hearing. While some animals can detect ultrasonic frequencies, humans cannot perceive these waves audibly without the aid of specialized equipment.
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Ultrasonic waves have frequencies more than 20,000 Hz, beyond the upper limit of human hearing. They are used in various applications such as medical imaging, industrial cleaning, and sonar.
Infrasound waves have frequencies less than 20 Hz. They are below the threshold of human hearing, which ranges from 20 Hz to 20,000 Hz. Infrasound can be generated by natural events such as earthquakes and volcanic eruptions, as well as ...
When a bucket of water is rotated very fast in a vertical circle, the water does not fall from the bucket even from its highest position because centrifugal force is greater than the weight of water. Centrifugal force pushes the ...
When milk is churned vigorously, cream separates from it due to centrifugal force. Centrifugal force acts outward from the center of rotation, causing denser milk particles to move towards the outer edges of the container, while lighter cream particles move ...
When a cyclist turns a corner, he leans inwards. Leaning inwards helps the cyclist counteract the centrifugal force generated during the turn, maintaining balance and stability. This technique allows for smoother and more controlled maneuvering around the corner, reducing the ...
A cyclist bends while taking a turn to ensure that the center of gravity remains inside the base, preventing the bicycle from falling. This action helps maintain stability by redistributing the rider’s weight and aligning the forces acting on the ...
Railway tracks are banked on curves so that the required centripetal force can be obtained from the horizontal component of the train’s weight. This helps to prevent derailment by ensuring that the train remains securely on the tracks, balancing the ...
The period of a Geostationary Satellite is 24 hours. A geostationary satellite orbits the Earth at the same rate as the Earth’s rotation, completing one orbit in 24 hours. This allows it to appear stationary relative to a fixed point ...
With 11.2 km/s minimum velocity will a rocket overcome the Earth’s gravity and go into space when launched from the Earth’s surface. This velocity is known as the escape velocity, the minimum speed required for an object to break free ...