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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 (eV). Show all
A) When the energy in the inductor is 2/3 of its maximum value, what is the voltage across the resistor? The inductor ?
A solenoid with 500 tunrs per cm, length 18cm, radius of r=10mm and a resistance of R=20 . The coil carries a current i=2A . What is the rate of change of the current in the coil ?
When the energy in the inductor is 2/3 of its maximum value, what is the voltage across the resistor? The inductor ?
The solenoid carries a current i=7sin(wt) a) what is the magnetic field through the small coil? b) What is the flux though the small coil? c) What is the rate of change of flux through the small coi
An inductor of L=0.7H and a charged capacitor C=5F with Q =20C are connected to each other. How much energy is stored in the capacitor initially? When the current in the circuit is 1/2 its maximu
Neglecting the variation of T with altitude and using the average surface temperature of 290K and the number average molecular weight of 29 for air, calculate the atmospheric pressure at the top of
For N2 at 25oC and 1.00 atm calculate the number of collisions per second made by one molecule; the number of collisions per second per cubic centimeter; compare these values to N2 at 25oC and 1.0*1
Dry air had a CO2 mole fraction of 0.00038 in 2007 (compared with 0.00032 in 1965). Calculate the total mass of CO2 that strikes 1 cm^2 of one side of a green leaf in 1 s in dry air at 25oC and 1.00
At what temperature will H2 molecules have the same rms speed at O2 molecules have at 20oC? Solve this problem without claculating vrms for O2. Show all calculations.
If the temperature of the rod increases by 70.4°C, calculate its increase in length. (Use 9.0×10-6 °C-1 for the coefficient of linear expansion for glass. Use this value to find the co
When you take a bath, how many kilograms of hot water (48.8°C) must you mix with cold water (13.6°C) so that the temperature of the bath is 36.5°C? The total mass of water (hot plus cold
A 0.335 kg iron horseshoe that is initially at 420°C is dropped into a bucket containing 20.3 kg of water at 22.1°C. What is the final equilibrium temperature (in °C)? Neglect any heat t
To help keep his barn warm on cold days, a farmer stores 832 kg of solar-heated water (Lf = 3.35E+5 J/kg) in barrels. For how many hours would a 2.07 kW electric space heater have to operate to prov
a particle with spin 1 has orbital angular momentum l=0. what are the possible values for the total angular momentum quantum number j?
Light of wavelength 696 nm is incident on a single slit. The central bright fringe is 2.64 cm wide on a flat screen that is 94.8 cm from the slit. What would be the width of the central bright fring
Light of wavelength 679 nm is incident on a single slit. The central bright fringe is 2.75 cm wide on a flat screen that is 81.4 cm from the slit. What would be the width of the central bright frin
Suppose a toy oscillated with a frequency of 500 Hz and hence a period of 0.002s. If the toy moves past an observer at 0.9c, what is the frequency as measured by the observer?
The lens of a slide projector with a focal length of 100.0 mm projects a slide onto a screen that is 10.0 m away. How far from the lens must the slide be placed to form a sharp image on the screen?
A telescope consists of a mirror with radius of curvature 6.5 m and an eyepiece. If an astronomer would like the telescope to have a magnification of 114, what focal length eyepiece should he use?
Although all atoms have moving electric charges, not all materials are magnetic (for example, copper or wood are not magnetic). Why, then, aren't all materials magnetic?
Explain how the earth's geomagnetic field is created? Hint: be sure to include thedirection of the earth's current.
If a negatively charged particle enters a region of uniform magnetic field which is perpendicular to the particle's velocity, will the KE of the particle increase, decrease, orstay the same. Explain
What is the work done by the surroundings on the balloon? (Hint: Which way does the force of the surroundings act on the balloon? How does the force of the surroundings on the balloon compare to the
1) Suppose the gas inside a particular balloon has an absolute pressure of 3.10×105 Pa and occupies a volume of 5.97×10-3 m3 at a temperature of 10.5°C. How many moles of gas are insid