A rock is thrown from the top of a bridge with a horizontal speed of 6 m/s. It takes the rock 3s to reach the ground. How fast will it be moving horizontally when it reaches the ground?

Why do electron microscopes have higher resolving power than light microscopes?

If forces acting on an object are unbalanced. true or false

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.