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A circuit consists of a 12.0-V battery connected to three resistors (41ohms , 19ohms and 110ohms ) in series.
Part A:Find the current that flows through the battery. Answer in mA.
Part B:Find the potential difference across the 41ohms resistor.
part C: Find the potential difference across the 19 ohms resistor.
Part D: Find the potential difference across the 110 ohms resistor.
Human skin is most sensitive to ultraviolet light of approximate wavelength 300 nm. The threshold for sunburn occurs when 1 cm2 of skin absorbs about 1015 of these UV photons over an interval of several hours or less. How much energy is absorbed
Calculate the ratio of the drag force on a jet flying at 1132 km/h at an altitude of 10.0 km to the drag force on a prop-driven transport flying at 547 km/h
A photon with energy 0.50 eV is barely capable of causing a photoelectric effect when it strikes a metal plate. Find the speed of the released electron far from the nucleus
A light ray enters a glass slab at point A at an angle of 58.6° with respect to the surface normal, What minimum value for the index of refraction of the glass can be inferred from this
An electron with an initial speed of 5.50×10^5m/s is brought to rest by an electric field. What was the potential difference that stopped the electron
Consider a tungsten filament in a light bulb. After the bulb has been on for an hour, how has the resistance in filament changed (if at all).
express the potential difference between the plates.
John is farsighted and cannot see objects clearly that are closer to the eye than 65.0 cm. What is the focal length of the contact lenses
A major-league pitcher can throw a baseball in excess of 44.2m/s. If a ball is thrown horizontally at this speed, how much would it drop by the time it reaches the catcher who is 16.10 m away from the point of release.
Susie is out fishing on a calm, sunny day. She hooks an old tire that is resting on the lake bottom, and hauls it into her boat
Fireflies emit flashes of light to communicate, directly converting chemical energy into the energy of visible-light photons. How many photons does the firefly emit during each flash
A collection of hydrogen atoms in the ground state is illuminated with ultraviolet light of wavelength 59.0 nm. Find the kinetic energy of the emitted electrons
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