Why is a silver spoon a good conductor

Which atomic model was proposed as a result of j. j. thomson’s work?

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?