Joe wants to buy a fast car and is looking at a car that can accelerate from 45 to 60 in 3.5 seconds. Determine the acceleration of this car and if it is fast given that most sports cars can accelerate at 7.66 [[m/s?1].

Modify the equation fδt=δ (mv) to find the force of friction.

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers