ApplicationsTolerance The radius r of a circle is measured

Fundamentals of Physics 10
Figure 23-35 shows a closed Gaussian surface in the shape of a cube of edge length 2.00 m,with one corner at x1 5.00 m,y1 4.00 m.The cube lies in a region where the electric field vector is given by with y in meters.What is the net charge contained by the cube? E : $ '3.00i ' 4.00y2 j " 3.00k N/C Fig

Classical Mechanics 0
In many problems in the calculus of variations, you need to know the length ds of a short segment of a curve on a surface, as in the expression (6.1). Make a table giving the appropriate expressions for ds in the following eight situations: (a) A curve given by y = y(x) in a plane, (b) same but x = x

Classical Mechanics 0
Consider an arbitrary rigid body with an axis of rotational symmetry, which we'll call i. (a) Prove that the axis of symmetry is a principal axis. (b) Prove that any two directions x and Sr perpendicular to i and each other are also principal axes. (c) Prove that the principal moments corresponding t

Chemistry 11
When ammonium nitrite (\(\mathrm{NH}_{4} \mathrm{NO}_{2}\)) is heated, it decomposes to give nitrogen gas. This property is used to inflate some tennis balls. (a) Write a balanced equation for the reaction. (b) Calculate the quantity (in grams) of \(\mathrm{NH}_{4} \mathrm{NO}_{2}\) needed

Physics, 9
A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 70.3-kg water-skier has an initial speed of 6.10 m/s. Later, the speed increases to 11.3 m/s. Determine the work done by the net external force acting on the skier.

Chemistry: Principles and Reactions 8
Classify each of the following as element, compound, or mixture. (a) air (b) iron (c) soy sauce (d) table salt

Biology: The Unity and Diversity of Life 15
Drugs that interfere with sympathetic nerve signals are often prescribed for men who have high blood pressure. How might such drugs impair sexual performance?

Chemistry for today : general, organic, and biochemistry 9
Given 3.00 moles of krypton gas, Kr(g), how many liters will this sample occupy at STP? a. 11.2 b. 22.4 c. 44.8 d. 67.2