Answer:
The distance between earthquake center and the measuring station is 1350 kilometers.
Explanation:
Let the earthquake center be at a distance of 'S' meters from the recording station.
Now from the basic relation of distance, speed and time we know that
For a Primary wave (P wave) let us assume that it appraoches the measuring station after 
minutes
Thus making use of the above relation we have
Now since it is given that the secondary wave (S wave) reaches the measuring spot after 2 minutes or 120 seconds thus the time taken by secondary waves to reach recorder equals 
making use of the same relation we get
Solving equation 'i' and 'ii' we get
Answer:
The answer depends on the arrangement of the batteries either parallel or series.
If the three batteries are connected in parallel, the voltmeter will read the same voltage as the individual battery (I.e, the combine voltage will remain 1.5 Bolts)
While
If the batteries are connected in series, and are correctly connected together from positive to negative, the combine voltages will increase by adding individual battery voltage together. So for three 1.5 Volts batteries, the total voltages will be 4.5 Volts.
Explanation:
Parallel connected
Vp = 1.5 Volts
Series connection
Vs = 1.5 + 1.5 + 1.5 = 4.5Volts
Answer: "ionic bonding" .
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Answer:
R = 0.14 Ω
Explanation:
The resistance of a metal is given by the relation
R = 
where ρ the resistivity is 5.6 10-8 Ω m, they also give the length and the cross section (area)
Let's reduce the magnitudes to the SI system
L = 200cm (1m / 100cm) = 2.00m
A = 8.0 10⁻⁷ m²
let's calculate
R = 5.6 10⁻⁸ 
R = 1.4 10⁻¹ Ω
R = 0.14 Ω
120 is your answer. 120 mL = 120 cm^3
