Physics

Physics, 09.08.2019 21:20, jakiyahporter0817

What process do you use to separate dust particles from oil

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Mathematics, 11.07.2019 10:20, ingridx0

Stefan is conducting an experiment to find the level of pollution in the air. he found that there are about 3 billion dust particles in one square meter of space. what is the approximate weight of 3 billion dust particles, if one dust particle weighs 4.66 × 10-12 grams? 1.4 × 10-4 grams

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Physics, 19.07.2019 20:30, erinolson07cats

Bonnie is dusting the house and raises a cloud of dust particles as she wipes across a table. if two 3.5 x 10-14c pieces of dust exert an electrostatic force of 4.1 x 10-12n on each other, how far apart are the dust particles at that time?

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Physics, 02.11.2019 05:31, dianaparra826

Aspaceship of frontal area 10 m2 moves through a large dust cloud with a speed of 1 x 106 m/s. the mass density of the dust is 3 x 10-18 kg/m3. if all the particles of dust that impact the spaceship stick to it, find the average decelerating force that the impacting particles exert on the ship. (you may assume that the mass of dust which sticks to the spacecraft is negligible compared to the mass of the spacecraft.)

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Physics, 02.11.2019 06:31, amandathompson1

(from ohanian): a spaceship of frontal area 15 m2 moves through a large dust cloud with a speed of 2 x 106 m/s. the mass density of the dust is 7 x 10-18 kg/m3. if all the particles of dust that impact the spaceship stick to it, find the average decelerating force that the impacting particles exert on the ship. (you may assume that the mass of dust which sticks to the spacecraft is negligible compared to the mass of the spacecraft.)

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