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A 97-mW vertically polarized laser beam passes through a polarizer whose polarizing angle is 15° from the horizontal. What is the power of the laser beam when it emerges from the polarizer?
An RLC oscillator circuit contains a 53.0 Ω resistor and a 1.60-mH inductor. What capacitance is necessary for the time constant of the circuit (the 1/e value) to be equal to the oscillat
A sample with a temperature of 106.51 degrees C is dropped into an insulated cup containing water whose mass is the same as the sample and whose temperature is initially 50 degrees C. The sample r
what was the average dose rate 3.5 billion years ago? State the source of all values used in your calculation. Please show all work.
Calculate and compare the electron densities of a piece of aluminum 1 cm thick and a piece of iron of the same density thickness. Show your work.
A neutron passes two points 1.0 meter apart in 1.0 microsecond. Calculate the neutron's energy in units of both joules (J), ergs and electron volts. Please show all work.
A particular material has a dielectric constant of 1.7 and a dielectric strength of 14.0 MV/m. If this material is used between the plates of a parallel-plate capacitor, what is the minimum area of
Two spaceships approach Earth with equal speeds, as measured by an observer on Earth, but from opposite directions. A meterstick on one spaceship is measured to be 60 cm long by an occupant of the o
This process takes place at constant pressure and the heat capacities at constant pressure of water and ice are 4180 and 2090 J/kg deg respectively. The heat of fusion of ice is 3.34x10^5 J/kg. Calc
The combination of two circular, coaxial coils of radius a separated by a distance also equal to a, with equal currents I in each coil circulating in the same direction, is known as a pair of "Helm
An automobile suspension involves both leaf springs with stiffness k and shock absorbers resist motion with a force -uv. The system is critically damped. If a car has mass 2000 kg and has shock abso
You stand at the center of a carousel spinning at rate w. You throw a ball horizontally with some velocity Xdot from height Zo. At a point where the ball has position v = (Xdot, Ydot, Zdot), what is
Explain the function of the activator added in trace quantities to many inorganic scintillators. Why are activators not needed in organic scintillators?
A 11 g bullet is fired into a 12 kg wood block that is at rest on a wood table. The block, with the bullet imbedded slides 5.0cm across the table. The coefficient of kinetic friction for wood slidi
An electron is accelerated through 1.60 x 103 V from rest and then enters a uniform 2.80-T magnetic field. (a) What is the maximum magnitude of the magnetic force this particle can experience?
Given that the latent heat of water/steam is approximately 41,000 J/mol, at what pressure will water boil at 50 degress Celcius? hint: remember that at 1 atm water boils at 373 K. Also, assume that
A particle of mass m is subject to the delta-function potential V(x) = -alpha delta(x) with alpha > 0. Evaluate the uncertainty product alpha x alpha p for the hound state.
Draw the vector starting at the black dot. The location and orientation of the vector will be graded. The length of the vector will not be graded.
A glass bottle of soda is sealed with a screw cap. The absolute pressure of the carbon dioxide inside the bottle is 1.70 x 105 Pa.
Two stretched cables both experience the same stress. The first cable has a radius of 3.1x10-3 m, and is subject to a stretching force of 230 N. The radius of the second cable is 4.6 x 10-3 m. Dete
What is the speed of the object at the instant when the spring is stretched by 0.042 m relative to its unstrained length?
A sinusoidal voltage E=200sin314t is applied to a resistor of 10 ohm resistance. Calculate power diddipated as heat in watt.
A luminous object is 4.80m from a wall. You are to use a concave mirror to project an image of the object on the wall, with the image 2.23 the size of the object.
Now consider a nucleus of charge Ze with two electrons. Use the variational principle to estimate the ground-state energy.