Answer:
A digital signal picks up noise, but is still reliable.
Explanation:
Answer:
Frequency heard by the police is 1336 Hz
Explanation:
As we know that the speed of sound in air is given as
now we know that
t = 35 degree C
so we have
now we know that if source and observer moves relative to each other then the observed frequency by the observer is given as
Answer:
36 grams of water
Explanation:
mass of H2O = 0.5 x 18 = 9g
Because the less dense magma is lighter so it floats to the top.