Physics, 10.11.2019 03:31 erenackermanlevijaeg
A32kg kid on a sled sliding over some rough snow is acted on by a frictional force which reduces its velocity form 8.5 m/s to 4.1 m/s in 3.0 seconds what is the magnitude of the frictional force?
Answers: 2
Physics, 22.06.2019 12:30
Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?
Answers: 3
Physics, 22.06.2019 19:20
Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
Answers: 1
Physics, 22.06.2019 20:20
Area around a charged object where the objects can exert a force on another charged objects is an electric
Answers: 2
A32kg kid on a sled sliding over some rough snow is acted on by a frictional force which reduces its...
Computers and Technology, 24.11.2020 18:00
English, 24.11.2020 18:00
Mathematics, 24.11.2020 18:00
History, 24.11.2020 18:00
Biology, 24.11.2020 18:00
Biology, 24.11.2020 18:00
Mathematics, 24.11.2020 18:00
Business, 24.11.2020 18:00
Chemistry, 24.11.2020 18:00