Physics, 19.02.2020 07:01, motionlessinwhite18
Railroad car A, with mass 6275 kg, is traveling east at 6.5 m/s along a straight track. It strikes railroad car B, with mass 5155 kg, which is also traveling east along the same track at 3.8 m/s. The two railroad cars stick together. Assume the track is frictionless. How fast do the two attached railroad cars move immediately after the collision?
a. ANALYZE AND SKETCH THE PROBLEM
Knowns Unknowns
mA = vAi = = ?
mB = vBi =
B. SOLVE FOR THE UNKNOWN
Define the system
Write Pi = Pf in terms of the railroad cars’ masses and velocities.
Solve for vf
Answers: 1
Other questions on the subject: Physics
Physics, 22.06.2019 18:20, tylersabin72
Object a has a length of 3 cm, a width of 2 cm, and a height of 4 cm. object b is dropped into a graduated cylinder. it displaces 19 ml of water. the volume of object a is: a: greater than the volume of object b b: less than the volume of object b c: equal to the volume of object b
Answers: 2
Physics, 22.06.2019 20:50, dondre54
Asquare 1m x 1m plate is shown below. all four of its edges are kept at 0 co. at t=0the temperature distribution is given by: y xtsins n75)=.a) using separation of variables determine the temperature distribution t(x, y,t)along the plate at any time t. b) discretize the heat conduction equation +=22222 txtusing a second-order centered difference scheme for the two second derivatives and a first-order forward euler scheme for the first derivative. using von neumann stability analysis, determine the stability criterion for the proposed discretization scheme in terms of , hand t. solve for the maximum allowable time step tmax
Answers: 1
Physics, 23.06.2019 02:00, jamesnech66
How can you measure the amplitude of a longitudinal wave?
Answers: 2
Physics, 23.06.2019 08:30, keasiabrown25
Acertain half-reaction has a standard reduction potential e_red^0 = -0.94 v. an engineer proposes using this half-reaction at the cathode of a galvanic cell that e must provide at least 1.00 v of electrical power. the cell will operate under standard conditions. a. is there a minimum standard reduction potential that the half-reaction used at the anode of this cell can have? b. is there a maximum standard reduction potential that the half-reaction used at the anode of this cell can have?
Answers: 1
Do you know the correct answer?
Railroad car A, with mass 6275 kg, is traveling east at 6.5 m/s along a straight track. It strikes r...
Questions in other subjects:
Physics, 04.02.2021 19:10
Mathematics, 04.02.2021 19:10
English, 04.02.2021 19:10
Social Studies, 04.02.2021 19:10
Mathematics, 04.02.2021 19:10
Mathematics, 04.02.2021 19:10
