Answer:à
Explanation:waves carry energy in the direction in which they move
Potential energy<span> is </span>energy<span> that is stored in an object. As the rubber band is released, </span>potential energy<span> is changed to motion. </span>Kinetic energy<span> is </span>energy<span> of motion. A rubber band flying through the air has </span>kinetic energy<span>.</span>
They compress or expand depending on amount of pressure or depending on the temperature
Answer:
The minimum inductance needed is 2.78 H
Explanation:
Given;
frequency of the AC, f = 26.5 Hz
the root mean square voltage in the circuit, 
= 41.2 V
the maximum current in the circuit, I₀ = 126 mA
The root mean square current is given by;
The inductive reactance is given by;
The minimum inductance needed is given by;
Therefore, the minimum inductance needed is 2.78 H
Explanation:
When a bullet is fired from a rifle, the actual firing makes a distinctive sound, but people at a distance may hear a second because the bullet creates a shock wave , a little sonic boom( speed of this sonic boom is greater than the speed of sound). It is this sound only that is heard by the people at a distance from the gun.
