A1385 kg cannon containing a 58.5 kg cannon ball is on wheels. the cannon fires the cannon ball giving it a velocity of 49.8 m/s north. what is the initial velocity of the cannon the instant after it fires the cannon ball?

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.

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

Select the three ways that the parallel-plate capacitor differs from a car battery.