A15 g bullet is fired horizontally into a block of wood
withmass 2.5 kg and embedded in the block. initially the block
ofwood hangs vertically and the impact causes the block to swing
sothat its center of mass rises 15cm. find the velocity of
thebullet just before the impact.
Answers: 2
Physics, 23.06.2019 06:00
The frequency of a tuning fork can be found by the method shown. a long tube open at both ends is submerged in a beaker of water, and the vibrating tuning fork is placed near the top of the tube. the length l of the air column is adjusted by moving the tube vertically. the sound waves generated by the fork are reinforced when the length of the air column corresponds to one of the resonant frequencies of the tube. the smallest value for l for which a peak occurs in sound intensity is 7 cm. l what is the frequency of the tuning fork? the speed of sound in air is 345 m/s. answer in units of hz
Answers: 2
Physics, 23.06.2019 07:00
The doctor lands his tardis on a planet whose radius is 1.2x10^7m the acceleration due to gravity is 18m/s^2. what is the mass of the planet
Answers: 1
A15 g bullet is fired horizontally into a block of wood
withmass 2.5 kg and embedded in the bl...
withmass 2.5 kg and embedded in the bl...
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