The oxygen in our atmosphere is produced by ________

Fill in the blank(s) with correct word


life processes

Physics & Space Science

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Double-Slit Interference: An optical engineer needs to ensure that the bright fringes from a double-slit are 15.7 mm apart on a detector that is 1.70 m from the slits. If the slits are illuminated with coherent light of wavelength 633 nm, how far apart should the slits be?

A. 68.5 ?m B. 74.0 ?m C. 79.5 ?m D. 63.0 ?m

Physics & Space Science

Describe the helium flash and why it occurs

What will be an ideal response?

Physics & Space Science

One practical application of matter waves is

A) the electron microscope. B) photovoltaic cells. C) lasers. D) television. E) X-rays.

Physics & Space Science

A small object with a 5.0-?C charge is accelerating horizontally on a friction-free surface at 0.0050 m/s2 due only to an electric field. If the object has a mass of 2.0 g, what is the magnitude of the electric field?

A) 2.0 N/C B) 4.0 N/C C) 0.0020 N/C D) 0.0040 N/C E) 1.0 N/C

Physics & Space Science