Physics, 07.11.2019 00:31 trevorhenyan51
A12-pack of omni-cola (mass 4.30 kg) is initially at rest ona horizontal floor. it is then pushed in a straight line for1.20 m by a trained dog who exerts ahorizontal force with magnitude 39.0n.
(a) use the work-energy theorem to find the final speedof the 12-pack if there is no friction between the 12-pack and thefloor.
m/s
(b) use the work-energy theorem to find the final speed of the12-pack if the coefficient of kinetic friction between the 12-packand the floor is 0.30.
m/s
Answers: 1
Physics, 22.06.2019 12:10, aedelfrance9250
Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)
Answers: 1
Physics, 22.06.2019 13:00, mckadams02
The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.
Answers: 3
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