Physics, 27.05.2020 19:08 lilymessina94
Some bands hate playing in school gyms because sound waves easily reflect off the walls and floor. What could you do to the gym walls to improve the sound quality?
Answers: 1
Physics, 22.06.2019 20:10, hncriciacheichi
Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.
Answers: 1
Physics, 23.06.2019 00:30, cici65360
Asmall electric heater, immersed in 80g of water in a calorimeter of 40j/k raises the temperature from 10.5 degree celsius to 25 degree celsius in 12 minutes. using the same apparatus with 50g of oil instead of water, it is found that the temperature of oil rises from 7 degree celsius to 27 degree celsius in 10 minutes. find specific heat capacity of the oil.
Answers: 2
Some bands hate playing in school gyms because sound waves easily reflect off the walls and floor. W...
Social Studies, 08.06.2021 06:00
Mathematics, 08.06.2021 06:00
Mathematics, 08.06.2021 06:00
Social Studies, 08.06.2021 06:00
English, 08.06.2021 06:00
Social Studies, 08.06.2021 06:00
Mathematics, 08.06.2021 06:00