Physics, 20.10.2019 16:30 wowihavefun
Compare and contrast the velocity at which x-rays and radio waves travel
Answers: 2
Physics, 21.06.2019 19:30
Ben(55 kg) is standing on very slippery ice when junior(25kg) bumps into him. junior was moving at a speed of 8m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision .
Answers: 2
Physics, 22.06.2019 22:50
The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
Answers: 3
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
Compare and contrast the velocity at which x-rays and radio waves travel...
Geography, 06.10.2019 15:30
Geography, 06.10.2019 15:30
Mathematics, 06.10.2019 15:30
English, 06.10.2019 15:30
Mathematics, 06.10.2019 15:30
Mathematics, 06.10.2019 15:30
Geography, 06.10.2019 15:30
History, 06.10.2019 15:30
Mathematics, 06.10.2019 15:30