Large rocks are found at the edge of lake huron, one of the great lakes. how will water from the lake change the rocks over time? a) it will wear down the rocks. b) it will make the rocks heavier. c) it will change the color of the rocks. d) it will plants grow on the rocks.

Two particles of masses m and 2m are placed on a smooth horizontal table. a string, which joins these two masses, hangs over the edge supporting a pulley, which suspends a particle of mass 3m.the pulley has negligible mass. the two parts of the string on the table are parallel and perpendicular to the edge of the table. the hanging parts of the string are vertical. find the acceleration of the particle of mass 3m.

What are the north and south poles of a solenoid change with?

On your wedding day your lover gives you a gold ring of mass 3.67 g. 48 years later its mass is 3.44 g. on the average how many atoms were abrated from the ring during each second of your marriage? the atomic mass of gold is 197 u. don't enter units