Answers: 1
Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
Physics, 22.06.2019 09:00
Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.
Answers: 1
Physics, 22.06.2019 19:10
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to
Answers: 3
Physics, 23.06.2019 02:00
Five structural isomers have the formula c6h14. where needed, draw the structure and give the iupac name of all five isomers.
Answers: 2
Which is expected to be more stable 6/3li or 9/3li...
Mathematics, 03.07.2020 18:01
Mathematics, 03.07.2020 18:01
Computers and Technology, 03.07.2020 18:01
Computers and Technology, 03.07.2020 18:01
Computers and Technology, 03.07.2020 18:01