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A horizontal magnetic field of 1.0 x 10-4 T is at an angle of 30o to the direction of the current in a straight wire 75 cm long. If the wire carries a current of 15 A, what is the magnitude of the f
Two parallel plates with a separation of 1.5 cm produce the perpendicular electric field. What voltage should be applied across the plates so that: A singly ionized ion traveling 8.0 x 104 m/s wil
Molecules have additional degrees of freedom that atoms don't possess, namely, rotation and vibration. The energies associated with molecular rotation and vibration are quantized and photons can be em
If a charge particle move in a straight line and there no other forces on it except possibly from a magnetic field, can you say with certainty that no magnetic field is present? Explain.
A square loop of wire with sides of length 40 cm is in a uniform magnetic field perpendicular to its area. What is the magnitude and of the average emf induced in the loop?
Use a computer to produce a table and graph, like those in this section, for two interacting two-state paramagnets, each containing 100 elementary magnetic dipoles. Take a "unit" of energy to be the a
Draw a corresponding triangle of forces, indicating the sizes of the angles. Use the triangle of forces to find the magnitudes of the tension in the rope and the normal reaction from the ramp, to the
The innermost is a solid sphere that has a radius R1. A spherical shell surrounds the sphere and has an inner radius R2 and an outer radius R3. The sphere and the shell are both surrounded by a second
A piston of mass M can move without friction inside a long vertical cylinder sealed from the bottom and opened from the top. The cylinder is filled with an ideal gas. At the equilibrium position, the
Does this violate the first law of thermodynamics? explain? Does this violate the second law of thermodynamics? Explain?
A 4 cm diameter vertical cylinder is sealed at the top by a frictionless piston. The piston is 25 cm above the bottom of the cylinder. It is filled with Carbon Dioxide (CO2). The gas begins at exactly
A 4 cm diameter vertical cylinder is sealed at the top by a frictionless piston. The piston is23 cm above the bottom of the cylinder. It is filled with Oxygen (O2). The gas begins at exactly one atmos
Upstream of a normal shock in air the pressure is 14.7 psia and the temperature is 528R. Downstream of the shock the air pressure is 76.8 psia. What is the Mach number upstream of the shock? What is t
Compute the porosity for rhombohedral packing of identical spheres.Answer is 25.96%... but how is this calculated?
A hoisting engine lifts a 200kg bucket of 1200liters of clay with density of 2000kg per cubic meter to a height of 7 meters in 20seconds. the power input is 12kw. what is the work output?what is th
Theoretically derive the equation for the period of a ring pendulum. A ring pendulum is a ring with a notch set on a knife edge and pushed a small bit to oscillate at small amplitudes, so that it exhi
The reserve capacity (RC) of a car battery is defined as the number of minutes the battery can provide 25.0A of current at a potential difference of 10.5V. Thus, the RC indicates how long the battery
A 4 cm diameter vertical cylinder is sealed at the top by a frictionless piston. The piston is 23 cm above the bottom of the cylinder. It is filled with Oxygen (O2). The gas begins at exactly one atmo
What is the number density of copper? ____atoms/m^3.What is the number density of magnesium? _______atoms/m^3
(a) What is the specific biomass production rate (g/L-h) (b) If the recycle is used with a recycle stream of 10 L/h and a recycle biomass concentration five times as large as that in the reactor exi
You are hanging over the edge of a cliff. Your two friends throw down a rope and you hold on to the middle. In terms of your weight, what force would each of them have to exert to pull you up if they
When the pressure on saturated liquid water is suddenly reduced to a lower pressure in an adiabatic and aergonic process, the liquid's temperature must also be reduced to reach a new equilibrium state
A rigid, sealed 1936 Ford coupe contains an equilibrium water liquid-vapor mixture with a quality of 8.8333% at 3.00 psia. After 500. Btu of heat energy are added to the coupe, the content becomes a s
A very long and hollow conducting cylinder with inner radius 5.0cm and outer radius 12.0 cm has a uniform charge distribution along its length of ? = 9.0 ?C/m.What is the value of the electric field a
Use Gauss' law to find the electric field of an infinitely long wire with static, uniform charge density (lambda) at some distaance r from it. Integrate to get the potential V(r), using V(r)-V(