Answer:
Electrolytic manganese dioxide (EMD) is used in zinc-carbon batteries together with zinc chloride and ammonium chloride. EMD is commonly used in zinc manganese dioxide rechargeable alkaline (Zn RAM) cells also. For these applications, purity is extremely important.
Explanation:
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Answer:
9.52 am
Explanation:
The p-waves travel with uniform motion (constant velocity), so we can calculate the time they take to travel from the epicenter to the point where they are recorded using
where
d is the distance covered
v is the speed of the p-waves
On average, the speed of p-waves is
v = 7 km/s
Here they have to cover a distance of
d = 5600 km
So, the time they take is:
Converting into minutes,
Since they were recorded at 10.05 am, it means the earthquake occurred 13 minutes before that: so, at 9.52 am.
Explanation:
It is given that,
The wavelength of red helium–neon laser light in air is,
(a) Frequency,
(b) Let shows its wavelength in glass that has an index of refraction of 1.51,
(c) Let is its speed in the glass.
Hence, this is the required solution.
Work= F times d so force x distance
25(.5) is 12.5
Answer: 0.5A
Explanation:
According to Ohm's law, the Voltage(V) when a current flows through a resistor can be calculated by using the formula:
V = IR
where,
V = Voltage = 200V
I = current in amps (A)
R = resistance in ohms (Ω) = 400Ω
Current = Voltage / Resistance
I = V/R
I = 200/400
I = 0.5A
Therefore, the current is 0.5 Ampere