Physics, 12.12.2019 20:31 KeyesRaveen
A2.17 g sample of acetylsalicylic acid required 23.88 ml of 0.5043 m naoh for complete reaction. addition of 13.46 ml of 0.4472 m hcl to the flask containing the aspirin and the sodium hydroxide produced a mixture with ph
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Simple machines can a. increase force only b. decrease force only c. increase or decrease force
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Which planet do you think would be easiest for humans to colonize some day?
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22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?
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Physics, 22.06.2019 20:00
In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm
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A2.17 g sample of acetylsalicylic acid required 23.88 ml of 0.5043 m naoh for complete reaction. add...
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