Discover Questions

How does an ambulance run in fog? It is the force exerted by an electric field? Please help me to solve this problem? Suppose x ∈ R and |x| ≤ 1. Prove that |x^2−4| ≤ 3|x−2|? A ball of mass 0.05kg strikes a wall normally 4 times in 2 seconds with a velocity of 10m/s. Calculate the average force on the wall.?