Physics, 21.11.2019 06:31 ghanim1963
Adiffraction grating contains 15,000 lines/inch. we pass a laser beam through the grating. the wavelength of the laser is 633 nm. on a screen 2.66m away, we observe spots of light. (a) how far (m) from the central maximum (m = 0) is the first-order maximum (m = 1) observed? (b) how far (m) from the central maximum (m = 0) is the second-order maximum (m = 2) observed? do not calculate this using the
Answers: 1
Physics, 22.06.2019 13:00
The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.
Answers: 3
Physics, 22.06.2019 15:30
Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?
Answers: 2
Adiffraction grating contains 15,000 lines/inch. we pass a laser beam through the grating. the wavel...
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