What frequencies will a 1.90 m long tube produce in the audible range (20 hz - 20,000 hz) at 18.0°c for the following cases? (a) the tube is closed at one end lowest frequency hz second lowest frequency hz highest frequency (rounded to the nearest hz) hz (b) the tube is open at both ends lowest frequency hz second lowest frequency hz highest frequency (rounded to the nearest hz) hz

The four giant gas points that are made primarily of lightweight elements are

Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?