Answer: The time required to deposit such amount of Mg is 886secs.
Explanation: According to Faraday Law of Electrolysis, the mass of a substance deposited is directly proportional to quantity of electricity passed.
He also stated that;
96500C(1Farday) of electricity is required to deposit 1 mole of any metal.
For 
+2e- ==>Mg
193000C(2Faraday) of electricity is required to deposit 1mole of Magnesium metal (1 mole of Mg=24g)
Which implies;
19300C will liberate 24g
xCwill liberate 0.110g
Where x is the amount of electricity to deposit 0.110g
x = (19300 × 0.110)/24
x = 884.6C
Recall that Q =It
Where Q is the quantity of electricity, I is the current and t is the time taken
884.6= 0.998 × t
t= 884.6/0.998
t= 886.3secs.
Therefore the time require is 886.3s.
Answer:
Explanation:
Electromagnetic waves are different from ocean waves through their mode of propagation
Electromagnetic waves are Those waves that do not requires any material medium for their propagation. examples of electromagnetic waves are, Light wave, radiant heat, radio wave,
While
Ocean Waves are classified under mechanical waves, because they required a material medium for the to be to be propagated.
Answer:
v = 15.4 m/s
Explanation:
1920 = 2010((343 - v)/343)
v = 15.358...
Answer:
45.8 cm
Explanation:
distance of object from the mirror is infinity
distance of image, v = 22.9 cm
The mirror is convex because it is used to see the distant objects and the image formed by the mirror is erect and small.
use mirror formula
Let f be the focal length of the mirror
1 / f = 1 / v + 1 / u
1 / f = 1 / 22.9 + 1 / ∞
f = 22.9 cm
radius of curvature = 2 x focal length
radius of curvature = 2 x 22.9 = 45.8 cm
(9.8m/s) divided by 4m. the m's cancel out leaving you with s so 2.45s
