Find way to know whether surface is orientable-nonorientable
Let the polygonal disk with pairs of edges identified to form the closed surface. Find the way to know instantly whether surface is orientable or nonorientable from reading off word which tells how edges are to be identified?
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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.
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.
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.
The blood flow speed via an aorta having a radius of 1.15 cm is 0.290 m/s. When hardening of the arteries causes the aorta to be constricted to a radius of around 0.950 cm, determine by how much the blood flow speed would increase?
A part of a sphere is mirrored on both the sides. When the magnification of an object is around 11.8 if the part is employed as a concave mirror, determine the magnification of an object at the similar distance in front of the convex side?
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