Alistair is enjoying a tightly contested curling match. his team has just made a throw and their stone is approaching a stationary one, of identical mass, at a speed vo. after an elastic collision, his stone moves at an angle 0 relative to its original path. the initially stationary stone moves along an orthogonal direction. how fast is each stone moving?

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

Asimple electrochemical cell contains two electrodes? t or f