6. If a Gary the snail, with an initial speed of 10 m/s and speeds up to a final speed of 50 m/s after 3 seconds, what will his acceleration be westward?

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants

Why should the wavelength scale of spectroscope be calibrated

Relative to the ground below, how many joules of potential energy does a 1000-kg boulder have at the top of a 5-m ledge?