The one-dimensional particle-in-a-box model shows why quantiza-tion only becomes apparent on the atomic scale. Energy quantization arises for all systems whose motions are connned by a potential well. Nonetheless, we have accepted their validity because they provide the most comprehensive account of the behavior of matter and radiation and because the agreement between theory and the results of all experiments conducted to date has been impressively accurate. These ideas appear foreign to us because they are inconsistent with our experience of the macroscopic world.

The key new concepts developed in quantum mechanics include the quantiza-tion of energy, a probabilistic description of particle motion, wave–particle duality, and indeterminacy. This was undoubtedly one of the most signiicant shifts in the history of science. (Include the sign of the value your answer.) m/s 40.0 N - 0 0.5 s 1.0 s 1.183 philosophical implications of quantum mechanics and develop a new way of thinking about nature on the nanometer-length scale. Find the speed of the 4.98-kg mass after collision. A graph showing the magnitude of the force during the collision versus time is shown in the figure below, where the force is exerted in the direction opposite the initial velocity. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An object of mass m = 4.98 kg that is moving with a speed of 14.1 m/s collides head-on with another object, and the collision lasts 1.50 s. Enter your answer to at least three significant figures.) V2 m/s (b) What is the kinetic energy lost in the collision? ] Need Help? Read It 6. N w- Car 2 10.00 m/s Car 1 5.62 m/sĬar 1 wannoy 5.62 m/s (a) If the masses of bumper cars 1 and 2 are 582 kg and 617 kg respectively, what is the velocity of bumper car 2 immediately after the collision? (Express your answer in vector form. Friction is negligible between the cars and the ground. After they collide, bumper car 1 is observed to be traveling to the west with a speed of 3.21 m/s. Initially, bumper car 1 is traveling to the east at 5.62 m/s, and bumper car 2 is traveling 60.0° south of west at 10.00 m/s. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Two bumper cars at the county fair are sliding toward one another (see figure below). Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) Vir = m/s var m/s Need Help? Read it Submit Answer 5. Positive to the right, and negative is to the left. Indicate the direction with the sign of your answer. If m2 = 9mi, m1 = 0.049 kg, and h = 0.42 m, what is the velocity of each ball after the collision? (Assume the balls slide but do not roll. They are released from rest simultaneously and collide elastically in the trough of the track. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Initially, ball 1 rests on an incline of height h, and ball 2 rests on an incline of height 1/2 as shown in the figure below. What is the velocity of the combination after the collision? m/s Need Help? Read ItĤ. The two objects get stuck together in the collision. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An object of mass 3.50 kg moving with a velocity of 3.20 m/s collides with another object of mass 1.60 kg moving with a velocity of 3.60 m/s in the same direction.

Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. This may be due to roundoff error, or you could have a mistake in your calculation. 12.018 x Your response is within 10% of the correct value. Find the distance over which the skater will move in the opposite direction if the coefficient of kinetic friction between the skater and the ice is 0.03. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A skater of mass 60.0 kg standing on ice throws a stone of mass 7.57 kg with a speed of 20.3 m/s in a horizontal direction. DETAILS PREVIOUS ANSWERS KATZPSEF1 11.P.020.

Fincalc 2 5.3.018 webassign