Physics, 27.01.2021 21:20 SunsetPrincess
Question 1 (6 points) A car of mass 1000 kg is heading east at 25 m/s. It collides with a car of mass 1200 kg heading north at 30 m/s. When the cars collide, they stick together.'
a. What is the total momentum of the system before the collision? Remember that momentum is a vector quantity, and write the momentum in component notation, with , and y unit vectors. (1 point)
b. What is the total momentum of the system after the collision? Write the momentum in component notation, with x and y unit vectors. (1 point)
c. What is the velocity of the cars after the collision? Write the velocity in component notation, with and y unit vectors. (2 points)
d. At what angle do the cars move after the collision? (2 points)
Answers: 1
Physics, 22.06.2019 11:20
Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .
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Physics, 22.06.2019 13:30
The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
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Physics, 22.06.2019 14:00
An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.
Answers: 1
Question 1 (6 points) A car of mass 1000 kg is heading east at 25 m/s. It collides with a car of mas...
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