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A particle leaves the origin with a speed of1 × 106 m/s at 30? to the x axis. It moves in a constant electric field E = Eyˆj. Find Ey such that the particle will cross the x axis at x = 2.5 cm if the particle is an electron. The fundamental charge is 1.602 × 10-19 C, and the masses of the electron and proton are 9.11 × 10-31 kg and 1.6726 × 10-27 kg, respectively.
Using the liquid drop model, tabulate the nuclear binding energy and the various contributions to the binding energy for the nuclei 40Ca and 208Pb.
Maddie is standing still when her dancing partner, Paul, begins to lift her up and throw her into the air. What is Maddie's vertical velocity when Paul releases her
plane polarized light of intensity I0 is passed through two polarizers, the first one at 45 degrees to the original plane of polarization, what intensity is transmitted
How many 104 W lightbulbs can you use in a 102 V circuit without tripping a 17 A circuit breaker? (The bulbs are connected in parallel that means that the potential difference across each lightbulb is 102 V.)
32 violins playing simultaneously with the same intensity combine to give an intensity level of 82 dB. a) What is the intensity level of each violin? (b) If the number of violins is increased to 64, will the combined intensity level be more than, les..
A ball is kicked horizontally of the roof of a 100-ft high building at a speed of 18 ft/sec. Determine the angle in which the ball hits the ground
When seven people whose average mass is 83 kg sit down in a car, they ?nd that the car drops 0.99 cm lower on its springs. What is the frequency of the car's vibration
A 9.10 kg board is wedged into a corner and held by a spring at a 50° angle, as the Illustrating shows. The spring has a spring constant of 196 N/m and is parallel to the floor.
The isotope lithium-7 has a mass of 7.0160 atomic mass units, andthe isotope lithium-6 has a mass of 6.0151 atomic mass units. calculate the average atomic mass of lithium
a boat capable of making 10.0 kmh in still water is used to cross a river flowing at speed of 4.0 kmh. the boat is
The temperature of a monatomic ideal gas remains constant through a process in which 4410 J of heat flows out of the gas. How much work (including the proper + or - sign) is done on the gas?
Electrons are ejected from a certain metallic surface with speeds ranging up to 4.2 105 m/s when light with a wavelength of ? = 615 nm is used. What is the work function of the metal?
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