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The hydrogen spectrum has a red line at 656 nm and a violet line at 434 nm. What angular separation between these two spectral lines is obtained with a diffraction grating that has 4886 lines/cm? (Assume that the light is incident normally on the grating.)Copy and paste your question here...
Suppose you pour 19 g of water into 1.0 litres jar and seal it tightly. What will be the pressure of the vaporized water
A 12.0-{rm kg} box resting on a horizontal, frictionless surface is attached to a 5.00-{rm kg} weight by a thin, light wire that passes over a frictionless pulley). The pulley has the shape of a uniform solid disk of mass 2.40 {rm kg} and diameter 0...
An advanced space probe in the twenty-first century travelsfrom the earth with a speed of 5.00 x 106 m/s relativeto the earth and then returns at the same speed. find the difference in the elapsed times on the two clocks
each of two very long straight parallel rods carries a positive charge of x coulombs per meter. the distance between
At a testing facility, both a rocket and a jet are to be compared on their performance. The jet was tested first. what is the difference between a rocket and a jet
A 2.50g ice flake is free from the edge of a hemispherical bowl whose radius r is 31 cm. The flake-bowl contact is frictionless. What is the speed of the flake when it reaches the bottom of the bowl?
Two lasers are shining on a double slit, with slit separation d. Laser 1 has a wavelength of d/20, whereas laser 2 has a wavelength of d/15. Find the distance between first maxima
The yellow light from a helium discharge tube has a wavelength of 587.50. When this light illuminates a certain diffraction grating it produces a first-order principal maximum at an angle of 1.050.
for this module you will investigate the operation of antennas. antennas can both transmit and receive electromagnetic
Arsenic in 7,150 g of a herbicide is converted in arsenate ions (AsO4{3-}) and the arsenate ions form a precipitate of Ag3AsO4 with 25,00 ml of AgNO3 solution 0,05000 M. The excess of Ag{+} is titrated with 3,85 ml of a KSCN solution 0,0500 M. Cal..
A 32g bullet is fired from a rifle at 380 m/s into a water bottle at a pointblank range. The bullet travels completely through the 12 cm long bottle, find the average force exerted by the water on the bullet
The 1000 kilogram mass of a car includes four tires, each of mass (including wheels) 34 kilogram and diameter 0.80 meter. Find the fraction of the kinetic energy in the tires and wheels
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