Atrain with mass 1000kg is moving at 15 m/s south. a second train engine with a mass of 500 kg is sitting at rest on the tracks ahead. what is the magnitude of the total momentum of the entire system? assume that after the trains crash the first train comes to a stop at the point of the crash. how fast does the second train slide? assume that after the crash the trains stick together and slide as one. how fast to they slide? assume that after the crash the second train is sliding at 20 m/s south. what is the velocity of the first train?
Answers: 2
Physics, 22.06.2019 07:00
We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?
Answers: 1
Physics, 22.06.2019 11:30
(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?
Answers: 3
Physics, 22.06.2019 12:20
What is the coefficient of kinetic friction μk between the block and the tabletop?
Answers: 1
Physics, 22.06.2019 14:30
Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates
Answers: 3
Atrain with mass 1000kg is moving at 15 m/s south. a second train engine with a mass of 500 kg is si...
Mathematics, 03.02.2021 21:10
Chemistry, 03.02.2021 21:10
Social Studies, 03.02.2021 21:10
Chemistry, 03.02.2021 21:10
Mathematics, 03.02.2021 21:10
Mathematics, 03.02.2021 21:10
Biology, 03.02.2021 21:10
History, 03.02.2021 21:10
Chemistry, 03.02.2021 21:10
Mathematics, 03.02.2021 21:10
History, 03.02.2021 21:10
Mathematics, 03.02.2021 21:10
Mathematics, 03.02.2021 21:10