(20 points)

a truck starts from rest and accelerates at 4 m/s2 for 9 seconds. how fast will the truck now be going?

why could you accelerate while traveling at a constant speed?

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?