Which of earth sphere have the most mass

Which of the following would not be taken into consideration when describing the quality of a sound

Give an example in which the electrical energy changes to light energy

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?