Physics, 13.11.2019 10:31 iilovejohnccena1022
Before colliding, the momentum of block a is +15.0 kg(m/s) and block b -35.0kg(m/s). after block a has a momentum of -12.0kg(m/s). what is the momentum of block b afterwards?
Answers: 2
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 12:30
Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j
Answers: 1
Physics, 22.06.2019 16:30
Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?
Answers: 2
Before colliding, the momentum of block a is +15.0 kg(m/s) and block b -35.0kg(m/s). after block a h...
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