Answers: 3
Physics, 22.06.2019 22:50, mdg5605
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, 22.06.2019 23:00, genyjoannerubiera
Why does gravity have a lesser than grater effect on higher altitudes?
Answers: 2
Physics, 22.06.2019 23:00, maddie6825
1700 j of energy is lost from 0.14 kg object , the temperature decreases from 50°c to 45°c what is the specific heat of this object, amd what is the material ?
Answers: 1
Two neutral objects - object A and object B - are rubbed together. During the process,
electrons ar...
Mathematics, 07.05.2021 19:10
Mathematics, 07.05.2021 19:10
Mathematics, 07.05.2021 19:10
Mathematics, 07.05.2021 19:10
Mathematics, 07.05.2021 19:10
Mathematics, 07.05.2021 19:10