Problem on the density of the object
An object consists of a weight of 7.4 N in air. Though, it apparently weighs just 3.3 N if it is fully submerged in water. Determine the density of the object? Represent your answer by using two significant figures.
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Determine how many grams of gas are present in a sample the has a mol as mass of 70.0 g/mol and occupies a 2.00L container at 117 kPa and 35.1c?
One curie = 3.7 x 10610 decays per second. The half life of 137Cs is 30 years. When the current activity in such a source is 7.5 micro-curies, determine what will it be in around 15 years?
When radioactive substance provides a counting rate of 1250 cpm at time t = 0, and a counting rate of around 475 cpm at time t = 20 minutes, determine the half life of the substance.
How many milliliters of 3.550M H I (aq) must be added to a solution containing .700 mol of Pb(NO3)2(aq) to completely precipice the lead. Lead iodide is virtually insoluble in water so that the reaction appears to go to completion.
A mass is joined to a spring on the frictionless horizontal surface. The mass is pulled to stretch the spring by 0.1 m and then gently released. A short time later, as the mass passes via the equilibrium position, its speed is around 1 m/s.
Find the way to know instantly whether surface is orientable or nonorientable from reading off word which tells how edges are to be identified?
When the pipe tapers to 1.2 cm and increases to the second floor 7.6 m over the input point, determine the: Water pressure at the second floor?
A concave mirror consists of a magnification of +3.0 for an object positioned 50 cm in front of it. (i) What kind of image is generated? (ii) Determine the radius of curvature of the mirror.
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