A 3 N bag is hanged on a wall by its straps. Consider that the tension on the straps as one vertical tension force, T. If the vertical summation of forces acting on the bag is zero and there is no friction between the bag and the wall, what is the tension force on the straps.

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.