If a person hears two sounds, the first is emitted by human being while the second is emitted by an instrument. Both have same frequency and same amplitude.
Select one:
a. The person can distinguish between the two sounds.
b. The person cannot distinguish between the two sounds
c. The person can hear only the sound emitted from the human being
d. The person can hear only the sound emitted from the instrument

What is the frequency of a light wave with a wavelength of 620nm

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer