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An object X sinks in liquids P and Q but floats in liquid R. Which of the following conclusions can be made from these observations? A) Density of X is more than the density of P B) Density of X is less than the density of R C) Density of P is equal to the density of R D) Density of P is less than the density of R
Which of the following are the active materials of a lead-acid cell? 1) Lead Peroxide (PbO2) for positive plate 2) Sponge Lead (Pb) for negative plate 3) Concentrated Sulphuric acid (H2SO4) as electrolyte 4) Dilute Sulphuric acid (H2SO4) as electrolyte
একটি লঘু H2SO4 মিশ্রিত 15 15 cm2 আয়তনের 0.3 M KMnO4 দ্রবণ দ্বারা 25 cm3 অায়তনের H2SO4 কে জারিত করে। এ দ্রবণে H2SO4 এর মোলার ঘন মাত্রা কত হবে?
1000 mL 1 N H2SO4   এর দ্রবণ তৈরি করতে 98% H2SO4   এর কত মিলিলিটারের প্রয়োজন হবে? [H2SO4   এর ঘণত্ব = 1.8 g /cc]
Which one of the following is true for Lead accumulators?
Consider the following statements about Lead 1. Lead in bone is released into blood during pregnancy and becomes a source of exposure to the developing foetus 2. Informal and substandard recycling of lead-acid batteries is one of the cause of Lead Poisoning Which of the above statements is/are correct?
A large tank of height h is half-filled with a liquid of density ρ and other half-filled with a liquid of density 4ρ. A similar tank is half-filled with a liquid of density 2ρ and other-half filled with another liquid of density 3ρ as shown. What will be the ratio of the instantaneous velocities of discharge through a small opening at the base of the tanks? (assume that the diameter of the opening is negligible compared to the height of the liquid column in either of the tanks)
Determine the density specific impulse (Id) if the specific impulse is 315 s and the average density of the propellants is 840 kg/m3. Take the reference density to be the maximum density of water.
Accumulators should have adequate volume to store refrigerant charge at least
How many accumulators does an MC6800 have?