Answer: The minimum kinetic energy Kmin is 1.3 × 10^-13 J
Explanation: Please see the attachments below
<span>In real machines, efficiency is always less than 1 .</span>
Answer:an electrical Current can be defined as the free flow of electrons through a circuit
Explanation:
D. Light from the sun is reflected off the moon's surface
Answer:
mechanical waves,
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the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.
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If the amplitude increases the volume increases and vice versa.
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The type of medium affects a sound wave as sound travels with the help of the vibration in particles.
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The higher the frequency, the shorter the wavelength.
Explanation:
