A 1.95 kg object on a frictionless horizontal track is attached to the end of a horizontal spring whose force constant is 4.65 N/m. The object is displaced 4.29 m to the right from its equilibrium position and then released, which initiates simple harmonic motion. What is the magnitude of the force acting on the object 3.55 s after it is released? Answer in units of N. 007 (part 2 of 2) 10.0 points How many times does the object oscillate in 3.55 s? Answer in units of turn

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •  

Select the correct answer. what does the process of natural selection involve?

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?