Physics, 14.12.2020 18:50 Chapman645
A book is sitting on a table. the force exterted on the book by the table is equal to the book's?
(a) friction force
(b) tension force
(c) mass
(d) weight
Answers: 3
Physics, 22.06.2019 12:50, starr3971
Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.
Answers: 2
Physics, 22.06.2019 22:00, tewilliams1
If anyonee has done the momentum lab practical in physics can you give me the answers i am s lostt rnn : (
Answers: 2
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
A book is sitting on a table. the force exterted on the book by the table is equal to the book's?
(...
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