Physics, 29.05.2021 14:00 jayjinks976
A bullet of mass 10g travel horizontally at 300m/s, strikes a wooden block of mass 290g which is at rest but free to move on the floor. After the impact the block and the bullet collides and move together and come to rest after travelling 15m on the floor. Find the coefficient of static friction
Answers: 3
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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A90db sound wave strikes an eardrum whose area is 5.0×10^-5m^2. how much energy is absorbed by the eardrum per second
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What is the prp when using 5 mhz acoustic waves through soft tissue, imaging a death of 20 cm?
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A bullet of mass 10g travel horizontally at 300m/s, strikes a wooden block of mass 290g which is at...
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