When you drop your platinum ring into water it raises the temperature of the water from 97 C to
99 C. During this time the water absorbs 2,000 J of heat. Calculate the mass of your platinum
ring.

Which of these metals are magnetic?

Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?

In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents