The height of mercury column in a barometer in a Calcutta laboratory was recorded to be 75 cm. Calculate this pressure in SI and CGS units using the following data : Specific gravity of mercuty = 13.6, Density of water = 103 kg/m3, g = 9.8 m/s2 at Calcutta. Pressure = hpg in usual symbols.
Answers 1
Answer:
the compound has 62,5% of Pb; 8,45% of N and 29,5% of O
the compound has 62,5% of Pb; 8,45% of N and 29,5% of ODetermine the empirical formula of this compound. Correct option is B)
the compound has 62,5% of Pb; 8,45% of N and 29,5% of ODetermine the empirical formula of this compound. Correct option is B)Horizontal Range R=
the compound has 62,5% of Pb; 8,45% of N and 29,5% of ODetermine the empirical formula of this compound. Correct option is B)Horizontal Range R= g
u
2
sin2θ
For maximum horizontal range θ=45
0
or, R
max
=
g
u
2
; where u is the muzzle velocity of the shell
∴1600m=
10m/s
2
u
2
∴u=400m/s
Hence,
option (B) is correct answer.
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