Answer: The tension in the string is zero
Explanation:
Answer: physiological
ADJECTIVE
relating to the branch of biology that deals with the normal functions of living organisms and their parts.
"physiological research on the causes of violent behavior"
relating to the way in which a living organism or bodily part functions.
"slow down your body's physiological response to anger by breathing deeply"
Explanation:
The reason the efficiency is always less than 100% is because there is always some sort of friction in the machine.
Answer: because of friction
Answer:
Frequency
Explanation:
The property of waves that remains unchanged as it crosses the boundary of one medium to another is the frequency of the wave.
As a wave moves from one boundary to another, the wavelength and the speed of the wave changes.
The speed of the wave is product of wavelength and frequency. Also, the wavelength of the wave is function of the distance between successive crests or troughs of a wave.
The frequency of a wave is the number of waves that crosses a medium per unit of time.
