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1. The resistance across your (wet) tongue, from one side to the other near the tip, is 375 ? (assume that your tongue is an ohmic material). If you connect two thick copper wires of relatively negligible resistance to the terminals of a 1.5 volt flashlight battery, and place them on opposite sides of your tongue, you will be able to "taste" the electricity as it flows across, producing a sour metallic flavor. What current is flowing through the saliva that coats your tongue?
What is the wavelength of the peak of the blackbody radiation curve for an emitter at temperature 242 K
(R)-(3-Chloro-2-methylpropyl) methyl ether (A) on reaction with azide ion (N3-) in aqueous ethanol gives (S)-(3-azido-2-methylpropyl) methyl ether (B). Compound A has the structure ClCH2CH(CH3)CH2OCH3. Draw the wedge-dash, wedge-line formula for A..
How can diversity in organizations and planning groups lead to greater success with change in a school or organization?
Conditions in the sewage pipe are Qs= 0.5 m^3/s, and Cs= 100mg/L. The pollutant is destroyed in the lake with a first-order rate constant of 0.2/d. The flow rate out of the lake is 5.0 m^3/s.
Draw a UML diagram of each of the Shapes, Rectangle and Square classes using the code that has been provided. Complete this using the examples that have been provide in the lecture slides - Sample program is provided that creates a list of shapes ..
2 mol of He gas initially at STP are sealed in a cylinder with a movable piston. Heat is extracted from the gas until it reaches a temperature of 100 K. What is the thermal efficiency of this engine
(Neglect volume changes.) [PO43-] = M. (b) Which cation precipitates first? Ag+ Cu2+ (c) What is the concentration of PO43- when the second cation begins to precipitate? [PO43-] = M.
1. What are positive and negative consequences in shaping behavior? How should they be managed? Explain the value of extinction as a strategy.
What is the pH of a buffer prepared by adding 0.809mol of the weak acid HA to 0.305mol of NaA in 2.00L of solution
Calculate the ratio of heating loss in a given length of wire (assumed ohmic) carrying current at 530 kV to when it operates at 120 V
A 16.0-? resistor, a 12.0-µF capacitor, and a 17.0-mH inductor are connected in series with a 170-V generator. What is the maximum value of the rms current?
A 2.0 kg ball swings in a vertical circle on the end of an 80cm long string. Calculate the speed, magnitude and direction of acceleration
The side-view mirror of an automobile has a radius of curvature of 20cm. The mirror produces a virtual image one-third the size of the object. How far is the object from mirror.
A plot of pressure as a function of volume is known as a pV diagram. pV diagrams are often used in analyzing thermodynamic processes. Consider an ideal gas that starts in state O, as indicated in the diagram. Your task is to explain how the gas proce..
a rotating merry-go-round is essentially a disk with mass of 250 kg an radius of 2.5m, Determine the final angular speed of the merry-go-round/son combination
A 0.24-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, Find the tension in the stick
A ball of mass 0.40 kg is fired with velocity 140 m/s into the barrel of a spring gun of mass 2.1 kg initially at rest on a frictionless surface. What fraction of the ball's initial kinetic energy is stored in the spring
A rectangular loop is located in a uniform magnetic field of magnitude 0.31 T directed perpendicular to the plane of the coil. what is the magnitude of the emf induced in the coil
A 2.9 kg block is released from rest on a 45° inclined ramp. The block will lose energy to friction at a constant rate of 4 J/m as it slides down the ramp
Two equally charged, 1.00 {rm g} spheres are placed with 2.00 {rm cm} between their centers. When released, each begins to accelerate at 225 {rm m/s^2}. What is the magnitude of the charge on each sphere.
Two blocks on a frictionless table, A and B, are connected by a massless string. What is the ratio (ma/mb) of the blocks masses
A 11.0nC point charge is at the center of a 2.50m× 2.50m × 2.50m cube. find the electric flux through the top surface of the cube
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