German physicist werner heisenberg related the uncertainty of an object's position (δx) to the uncertainty in its velocity (δ δx≥ℎδ where ℎ is planck's constant and m is the mass of the object. the mass of an electron is 9.11×10−31 kg. what is the uncertainty in the position of an electron moving at 4.00×106 m/s with an uncertainty of δ=0.01×106 m/s?

Aplane flies directly between two cities, a and b, which are separated by . from a to b, the plane flies into a headwind. on the return trip from b to a, the wind velocity is unchanged. the trip from b to a takes less than the trip from a to b. what is the airspeed of the plane, assuming it is the same in both directions

Diamond will scratch quartz. true or false

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s