Rupert is investigating the properties of a light (effectively massless) spring. He has attached one end of the spring to a fixe
1 answer:
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Answer:
0.652 mA
Explanation:
According to Faraday's Law :
where ;
A =
Induced current I =
=
=
= 0.652 mA
Thus, the induced current in the loop of wire over this time = 0.652 A
Answer:
s = 1800 m = 1.8 km
Explanation:
The distance, the speed, and the time of reach of the sound are related by the following formula:
where,
s = distance
v = speed
t = time
FOR WATER:
---------------------- eq (1)
where,
s = distance between ship and diver = ?
= speed of sound in water = 1440 m/s
t = time taken by sound in water
FOR AIR:
---------------------- eq (2)
where,
s = distance between ship and diver = ?
= speed of sound in water = 344 m/s
t + 4 s = time taken by sound in water
Comparing eq (1) and eq (2),because distance remains constant:
t = 1.25 s
Now using this value in eq (1):
<u>s = 1800 m = 1.8 km</u>