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How many miles away was the lightning strike? (Assume the light takes essentially no time to reach you.)
A plate capacitor has a spacing between its plates of 5.0 mm and a potential difference of 3.0 *10^3 V across its plates. an electron is released from the negative plate. how fast is the electron tr
The earth's crust is broken up into a series of more-or-less rigid plates that slide around due to motion of material in the mantle below.
What is the difference in temperature between the inner and outer sufaces of the aluminum bottom of the pot?
At this rate, how many minutes would it take such a scramjet to carry passengers the approximately 5000 from San Francisco to New York? (Use 331 for the speed of sound in air.)
An electric dipole consists of charges +e and -e separated by 0.90 nm. It is in an electric field of strength 3.00 106 N/C. The (imaginary) line connecting the two charges forms a 64° angle with
A parallel plate capacitor has a capacitance of 3.0 µF when filled with a dielectric. The area of each plate is 3.7 m2 and the separation between the plates is 2.50 10-5 m. What is the dielectri
If the charge in part (a) is due to K+ ions (charge +e), how many such ions are present on the outer surface?
If the potential on the outer surface of the membrane is +46.0 mV greater than that on the inside surface, how much charge resides on the outer surface?
Use ray tracing to determine the location of the image. Use ray tracing to determine the height of the image.
Two charges, +e and -e, are a distance of 0.620 nm apart in an electric field, E, that has a magnitude of 3.55 kN/C and is directed at an angle of 52.0° with respect to the dipole axis. Calculat
A 5.00 kg object is released from rest while fully submerged in a liquid. The liquid displaced by the submerged object has a mass of 2.14 kg. Take the upward direction to be positive.
What is the displacement of the object in 0.257 s, assuming that it moves freely and that the drag force on it from the liquid is negligible?
An electron is observed traveling at a speed of 38.9·106 m/s parallel to an electric field of magnitude 12800 N/C. How far will the electron travel before coming to a stop?
Sheena can row a boat at 2.95 mi/h in still water. She needs to cross a river that is 1.17 mi wide with a current flowing at 1.79 mi/h. Not having her calculator ready, she guesses that to go straig
As a 15000 kg jet plane lands on an aircraft carrier, its tail hook snags a cable to slow it down. The cable is attached to a spring with spring constant 60000 N/mIf the spring stretches 30 m to st
Research suggests that the electric fields in some thunderstorm clouds can be on the order of 10 kN/C. Calculate the magnitude of the electric force acting on a particle with 8 excess electrons in
Calculate the expectation value of the x position of a particle known to be in a state n = 3 of a 1D box of length L. What is the probability of the finding the particle between 0 and 0.25L?
Calculate the uncertainty in momentum and velocity of an electron in a 1 Å box (1 dimenstional), a hydrogen atom in a 10 Å box, and a 1 g ball bearing in a 10 cm box.
Air that initially occupies 0.49 m3 at a gauge pressure of 63 kPa is expanded isothermally to a pressure of 101.3 kPa and then cooled at constant pressure until it reaches its initial volume. Comput
Assume the voltage of the inner sphere is V volts greater than the outer sphere, and that spherical symmetry requires a radial electric field E(r) = rE(r), then what is: (a) E(r) and (b) The electri
At what frequency would the wavelength of sound in air be equal to the mean free path of oxygen molecules at 1.03 atm pressure and -1.55°C? Take the diameter of an oxygen molecule to be 7.55 &ti
At what frequency would the wavelength of sound in air be equal to the mean free path of oxygen molecules at 1.03 atm pressure and -1.55°C? Take the diameter of an oxygen molecule to be 7.55 &t
The beam strikes the wall over an area of 2.0 cm^2, at the rate of 1023 molecules per second. What is the beam's pressure on the wall?