Suppose you wanted to improve a moving. coil microphone so that it was more sensitive (e, so that it outputs a stronger induced emf for a given sound intensity). Which of the following will improve the sensitivity? a. Replace the diaphragm with one that moves more easily. b. Replace the magnet with a stronger one c. Increase the col with one with more turns d. All of the above e. None of the above

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

2.22/3.33 points | previous answers tamucolphysmechl1 4.pre.002. ask your teacher my notes question part points submissions used on a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 2.40 m/s. (a) what are the magnitude and direction of the velocity of the red glider after the collision? magnitude 3.33 m/s correct: your answer is correct. direction correct: your answer is correct. (b) is this collision elastic?