Answer all of them Describe what characterizes science and explain the difference between a hypothesis, a theory and a scientific law.

Explain Newton’s 3 laws of motion by using the example of a rollercoaster.

Breakdown and explain, in terms of frame of reference, if you’re inside a moving train everything on the outside can seem to be moving.

Propose a way to explain to someone the differences between the terms: speed, velocity and acceleration.

If you’re in a car moving at a high speed, and you stop abruptly, what would happen when wearing a seatbelt as opposed to not wearing a seat belt? Which of Newton’s 3 laws would apply?

Which fators influence ocean currents

Consider the particle-in-a-box problem in 1d. a particle with mass m is confined to move freely between two hard walls situated at x = 0 and x = l. the potential energy function is given as (a) describe the boundary conditions that must be satisfied by the wavefunctions ψ(x) (such as energy eigenfunctions). (b) solve the schr¨odinger’s equation and by using the boundary conditions of part (a) find all energy eigenfunctions, ψn(x), and the corresponding energies, en. (c) what are the allowed values of the quantum number n above? how did you decide on that? (d) what is the de broglie wavelength for the ground state? (e) sketch a plot of the lowest 3 levels’ wavefunctions (ψn(x) vs x). don’t forget to mark the positions of the walls on the graphs. (f) in a transition between the energy levels above, which transition produces the longest wavelength λ for the emitted photon? what is the corresponding wavele

Ahot-air balloon is 11.0 m above the ground and rising at a speed of 7.00 m/s. a ball is thrown horizontally from the balloon basket at a speed of 9.00 m/s. ignore friction and air resistance and find the speed of the ball when it strikes the ground.